Combined Measurement of the Higgs Boson Mass in pp
Collisions at s = 7 and 8 TeV with the ATLAS and CMS
Experiments
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Citation
Aad, G., B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins,
O.S. AbouZeid, et al. “Combined Measurement of the Higgs
Boson Mass in pp Collisions at s = 7 and 8 TeV with the ATLAS
and CMS Experiments.” Physical Review Letters 114, no. 19
(May 14, 2015). © 2015 CERN, for the ATLAS and CMS Collab.
As Published
http://dx.doi.org/10.1103/PhysRevLett.114.191803
Publisher
American Physical Society
Version
Final published version
Accessed
Wed May 25 20:57:14 EDT 2016
Citable Link
http://hdl.handle.net/1721.1/98504
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and may be subject to US copyright law. Please refer to the
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Detailed Terms
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PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
Combined Measurement of the Higgs Boson Mass in pp Collisions at
with the ATLAS and CMS Experiments
week ending
15 MAY 2015
pffiffi
s ¼ 7 and 8 TeV
G. Aad et al.*
(ATLAS Collaboration)†
(CMS Collaboration)‡
(Received 25 March 2015; published 14 May 2015)
A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS
and CMS experiments at the CERN LHC in the H → γγ and H → ZZ → 4l decay channels. The results
are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and
for the two experiments. The measured masses from the individual channels and the two experiments
are found to be consistent among themselves. The combined measured mass of the Higgs boson is
mH ¼ 125.09 0.21 ðstatÞ 0.11 ðsystÞ GeV.
DOI: 10.1103/PhysRevLett.114.191803
PACS numbers: 14.80.Bn, 13.85.Qk
The study of the mechanism of electroweak symmetry
breaking is one of the principal goals of the CERN LHC
program. In the standard model (SM), this symmetry
breaking is achieved through the introduction of a complex
doublet scalar field, leading to the prediction of the
Higgs boson H [1–6], whose mass mH is, however, not
predicted by the theory. In 2012, the ATLAS and CMS
Collaborations at the LHC announced the discovery of a
particle with Higgs-boson-like properties and a mass of
about 125 GeV [7–9]. The discovery was based primarily
on mass peaks observed in the γγ and ZZ → lþ l− l0þ l0−
(denoted H → ZZ → 4l for simplicity) decay channels,
where one or both of the Z bosons can be off shell and
where l and l0 denote an electron or muon. With mH
known, all properties of the SM Higgs boson, such as its
production cross section and partial decay widths, can be
predicted. Increasingly precise measurements [10–13] have
established that all observed properties of the new particle,
including its spin, parity, and coupling strengths to SM
particles are consistent within the uncertainties with those
expected for the SM Higgs boson.
The ATLAS and CMS Collaborations have independently measured mH using the samples of proton-proton
collision data collected in 2011 and 2012, commonly
referred to as LHC Run 1. The analyzed samples corre−1
spond
pffiffiffi to approximately−15 fb pffiffiffiof integrated luminosity at
s ¼ 7 TeV, and 20 fb at s ¼ 8 TeV, for each experiment. Combined results in the context of the separate
experiments, as well as those in the individual channels, are
presented in Refs. [12,14–16].
*
Full author list given at the end of the article.
Published by the American Physical Society under the terms of
the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and
the published article’s title, journal citation, and DOI.
0031-9007=15=114(19)=191803(33)
This Letter describes a combination of the Run 1 data
from the two experiments, leading to improved precision
for mH. Besides its intrinsic importance as a fundamental
parameter, improved knowledge of mH yields more precise
predictions for the other Higgs boson properties.
Furthermore, the combined mass measurement provides
a first step towards combinations of other quantities, such
as the couplings. In the SM, mH is related to the values of
the masses of the W boson and top quark through loopinduced effects. Taking into account other measured SM
quantities, the comparison of the measurements of the
Higgs boson, W boson, and top quark masses can be used
to directly test the consistency of the SM [17] and thus to
search for evidence of physics beyond the SM.
The combination is performed using only the H → γγ
and H → ZZ → 4l decay channels, because these two
channels offer the best mass resolution. Interference
between the Higgs boson signal and the continuum background is expected to produce a downward shift of the
signal peak relative to the true value of mH . The overall
effect in the H → γγ channel [18–20] is expected to be a
few tens of MeV for a Higgs boson with a width near the
SM value, which is small compared to the current precision. The effect in the H → ZZ → 4l channel is expected
to be much smaller [21]. The effects of the interference on
the mass spectra are neglected in this Letter.
The ATLAS and CMS detectors [22,23] are designed to
precisely reconstruct charged leptons, photons, hadronic
jets, and the imbalance of momentum transverse to the
direction of the beams. The two detectors are based on
different technologies requiring different reconstruction
and calibration methods. Consequently, they are subject
to different sources of systematic uncertainty.
The H → γγ channel is characterized by a narrow
resonant signal peak containing several hundred events
per experiment above a large falling continuum background. The overall signal-to-background ratio is a few
191803-1
© 2015 CERN, for the ATLAS and CMS Collab.
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
percent. Both experiments divide the H → γγ events into
different categories depending on the signal purity and mass
resolution, as a means to improve sensitivity. While CMS
uses the same analysis procedure for the measurement of the
Higgs boson mass and couplings [15], ATLAS implements
separate analyses for the couplings [24] and for the mass [14];
the latter analysis classifies events in a manner that reduces
the expected systematic uncertainties in mH .
The H → ZZ → 4l channel yields only a few tens of
signal events per experiment, but has very little background, resulting in a signal-to-background ratio larger
than 1. The events are analyzed separately depending on the
flavor of the lepton pairs. To extract mH , ATLAS employs a
two-dimensional (2D) fit to the distribution of the fourlepton mass and a kinematic discriminant introduced to
reject the main background, which arises from ZZ continuum production. The CMS procedure is based on a
three-dimensional fit, utilizing the four-lepton mass distribution, a kinematic discriminant, and the estimated
event-by-event uncertainty in the four-lepton mass. Both
analyses are optimized for the mass measurement and
neither attempts to distinguish between different Higgs
boson production mechanisms.
There are only minor differences in the parametrizations
used for the present combination compared to those used
for the combination of the two channels by the individual
experiments. These differences have almost no effect on the
results.
The measurement of mH , along with its uncertainty, is
based on the maximization of profile-likelihood ratios ΛðαÞ
in the asymptotic regime [25,26]:
ˆ
L(α; θ̂ðαÞ)
ΛðαÞ ¼
;
ð1Þ
Lðα̂; θ̂Þ
where L represents the likelihood function, α the parameters of interest, and θ the nuisance parameters. There are
three types of nuisance parameters: those corresponding to
systematic uncertainties, the fitted parameters of the background models, and any unconstrained signal model
parameters not relevant to the particular hypothesis under
test. Systematic uncertainties are discussed below. The
other two types of nuisance parameters are incorporated
into the statistical uncertainty. The θ terms are profiled, i.e.,
for each possible value of a parameter of interest (e.g., mH ),
all nuisance parameters are refitted to maximize L. The α̂
and θ̂ terms denote the unconditional maximum likelihood
estimates of the best-fit values for the parameters, while
ˆ
θ̂ðαÞ is the conditional maximum likelihood estimate for
given parameter values α.
The likelihood functions L are constructed using signal
and background probability density functions (PDFs) that
depend on the discriminating variables: for the H → γγ
channel, the diphoton mass, and, for the H → ZZ → 4l
channel, the four-lepton mass (for CMS, also its uncertainty) and the kinematic discriminant. The signal PDFs are
week ending
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derived from samples of Monte Carlo (MC) simulated
events. For the H → ZZ → 4l channel, the background
PDFs are determined using a combination of simulation
and data control regions. For the H → γγ channel, the
background PDFs are obtained directly from the fit to the
data. The profile-likelihood fits to the data are performed as
a function of mH and the signal-strength scale factors
defined below. The fitting framework is implemented
independently by ATLAS and CMS, using the ROOFIT
[27], ROOSTATS [28], and HISTFACTORY [29] data modeling
and handling packages.
Despite the current agreement between the measured
Higgs boson properties and the SM predictions, it is pertinent
to perform a mass measurement that is as independent as
possible of SM assumptions. For this purpose, three signalstrength scale factors are introduced and profiled in the fit,
thus reducing the dependence of the results on assumptions
about the Higgs boson couplings and about the variation
of the production cross section (σ) times branching fraction
(BF) with the mass. The signal strengths are defined as
μ ¼ ðσ expt × BFexpt Þ=ðσ SM × BFSM Þ, representing the ratio
of the cross section times branching fraction in the experiment to the corresponding SM expectation for the different
production and decay modes. Two factors, μγγ
ggFþtt̄H and
γγ
μVBFþVH , are used to scale the signal strength in the H → γγ
channel. The production processes involving Higgs boson
couplings to fermions, namely gluon fusion (ggF) and
associated production with a top quark-antiquark pair
(tt̄H), are scaled with the μγγ
ggFþtt̄H factor. The production
processes involving couplings to vector bosons, namely
vector boson fusion (VBF) and associated production with
a vector boson (VH), are scaled with the μγγ
VBFþVH factor. The
third factor μ4l is used to scale the signal strength in the
H → ZZ → 4l channel. Only a single signal-strength
parameter is used for H → ZZ → 4l events because the
mH measurement in this case is found to exhibit almost no
sensitivity to the different production mechanisms.
The procedure based on the two scale factors μγγ
ggFþtt̄H
and μγγ
VBFþVH for the H → γγ channel was previously
employed by CMS [15] but not by ATLAS. Instead,
ATLAS relied on a single H → γγ signal-strength scale
factor. The additional degree of freedom introduced by
ATLAS for the present study results in a shift of about
40 MeV in the ATLAS H → γγ result, leading to a shift of
20 MeV in the ATLAS combined mass measurement.
γγ
The individual signal strengths μγγ
ggFþtt̄H , μVBFþVH , and
μ4l are assumed to be the same for ATLAS and CMS, and
are profiled in the combined fit for mH. The corresponding
profile-likelihood ratio is
ΛðmH Þ
¼
191803-2
ˆ
ˆ γγ
ˆ 4l
L½mH ; μ̂ˆ γγ
ggFþtt̄H ðmH Þ; μ̂VBFþVH ðmH Þ; μ̂ ðmH Þ; θ̂ðmH Þ
γγ
4l
Lðm̂H ; μ̂γγ
ggFþtt̄H ; μ̂VBFþVH ; μ̂ ; θ̂Þ
:
ð2Þ
PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
Slightly more complex fit models are used, as described
below, to perform additional compatibility tests between
the different decay channels and between the results from
ATLAS and CMS.
Combining the ATLAS and CMS data for the H → γγ
and H → ZZ → 4l channels according to the above
procedure, the mass of the Higgs boson is determined to be
γγ
þ0.18
4l
μ (with μγγ
ggFþtt̄H ¼ μVBFþVH ¼ μ ≡ μ) is μ ¼ 1.24−0.16 .
The results reported here for the signal strengths are not
expected to have the same sensitivity, nor exactly the same
values, as those that would be extracted from a combined
analysis optimized for the coupling measurements.
The combined ATLAS and CMS results for mH in the
separate H → γγ and H → ZZ → 4l channels are
mH ¼ 125.09 0.24 GeV
mγγ
H ¼ 125.07 0.29 GeV
¼ 125.09 0.21 ðstatÞ 0.11 ðsystÞ GeV;
ð3Þ
where the total uncertainty is obtained from the width of
a negative log-likelihood ratio scan with all parameters
profiled. The statistical uncertainty is determined by fixing
all nuisance parameters to their best-fit values, except for
the three signal-strength scale factors and the H → γγ
background function parameters, which are profiled. The
systematic uncertainty is determined by subtracting in
quadrature the statistical uncertainty from the total uncertainty. Equation (3) shows that the uncertainties in the mH
measurement are dominated by the statistical term, even
when the Run 1 data sets of ATLAS and CMS are
combined. Figure 1 shows the negative log-likelihood ratio
scans as a function of mH , with all nuisance parameters
profiled (solid curves), and with the nuisance parameters
fixed to their best-fit values (dashed curves).
The signal strengths at the measured value of mH are
γγ
þ0.28
þ0.58
found to be μγγ
ggFþtt̄H ¼ 1.15−0.25 , μVBFþVH ¼ 1.17−0.53 ,
þ0.30
and μ4l ¼ 1.40−0.25 . The combined overall signal strength
7
H→γ γ
H → ZZ → 4l
Combined γ γ +4l
Stat only uncert.
ATLAS and CMS
6
LHC Run 1
H
−2ln Λ(m )
5
4
3
2
1
0
124
124.5
125
week ending
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125.5
126
mH (GeV)
FIG. 1 (color online). Scans of twice the negative loglikelihood ratio −2 ln ΛðmH Þ as functions of the Higgs boson
mass mH for the ATLAS and CMS combination of the H → γγ
(red), H → ZZ → 4l (blue), and combined (black) channels.
The dashed curves show the results accounting for statistical
uncertainties only, with all nuisance parameters associated with
systematic uncertainties fixed to their best-fit values. The 1 and 2
standard deviation limits are indicated by the intersections of the
horizontal lines at 1 and 4, respectively, with the log-likelihood
scan curves.
¼ 125.07 0.25 ðstatÞ 0.14 ðsystÞ GeV
ð4Þ
and
m4l
H ¼ 125.15 0.40 GeV
¼ 125.15 0.37 ðstatÞ 0.15 ðsystÞ GeV: ð5Þ
The corresponding likelihood ratio scans are shown in
Fig. 1. For the H → ZZ → 4l channel, the systematic
uncertainty is dominated by the absolute scale uncertainty
in the momentum measurement for the muons and in the
momentum and energy measurements for the electrons.
Large samples (> 107 events) of dilepton decays of the
J=ψ, ϒðnSÞ, and Z resonances are used by both experiments to evaluate the absolute scales and to correct for
residual misalignments in the inner tracker systems [14,16].
The systematic uncertainty in the ATLAS mH result from
H → ZZ → 4l decays was conservatively set to 60 MeV in
Ref. [14] to account for the limited numerical precision in
its estimate. A more precise procedure, resulting in a
reduced systematic uncertainty of 40 MeV, is used here.
For CMS, conservative systematic uncertainties of 0.1% for
the H → ZZ → 4μ and 2μ2e channels, and 0.3% for the
H → ZZ → 4e channel, were obtained in Ref. [16] and are
used here.
A summary of the results from the individual analyses
and their combination is presented in Fig. 2.
The observed uncertainties in the combined measurement can be compared with expectations. The latter are
evaluated by generating two Asimov data sets [26], where
an Asimov data set is a representative event sample that
provides both the median expectation for an experimental
result and its expected statistical variation, in the asymptotic approximation, without the need for an extensive
MC-based calculation. The first Asimov data set is a
“prefit” sample, generated using mH ¼ 125.0 GeV and
the SM predictions for the couplings, with all nuisance
parameters fixed to their nominal values. The second
Asimov data set is a “postfit” sample, in which mH , the
γγ
4l
three signal strengths μγγ
ggFþtt̄H , μVBFþVH , and μ , and all
nuisance parameters are fixed to their best-fit estimates
from the data. The expected uncertainties for the combined
mass are
191803-3
δmH prefit ¼ 0.24 GeV
¼ 0.22 ðstatÞ 0.10 ðsystÞ GeV
ð6Þ
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PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
ATLAS and CMS
LHC Run 1
Total
Syst
Stat
Total
Stat
Syst
ATLAS H → γ γ
126.02 ± 0.51 ( ± 0.43 ± 0.27) GeV
CMS H → γ γ
124.70 ± 0.34 ( ± 0.31 ± 0.15) GeV
ATLAS H → ZZ → 4l
124.51 ± 0.52 ( ± 0.52 ± 0.04) GeV
CMS H → ZZ → 4l
125.59 ± 0.45 ( ± 0.42 ± 0.17) GeV
ATLAS +CMS γ γ
125.07 ± 0.29 ( ± 0.25 ± 0.14) GeV
ATLAS +CMS 4l
125.15 ± 0.40 ( ± 0.37 ± 0.15) GeV
ATLAS +CMS γ γ +4l
125.09 ± 0.24 ( ± 0.21 ± 0.11) GeV
123
124
125
126
127
128
129
mH (GeV)
FIG. 2 (color online). Summary of Higgs boson mass measurements from the individual analyses of ATLAS and CMS and from the
combined analysis presented here. The systematic (narrower, magenta-shaded bands), statistical (wider, yellow-shaded bands), and total
(black error bars) uncertainties are indicated. The (red) vertical line and corresponding (gray) shaded column indicate the central value
and the total uncertainty of the combined measurement, respectively.
for the prefit case and
δmHpostfit ¼ 0.22 GeV
¼ 0.19 ðstatÞ 0.10 ðsystÞ GeV
ð7Þ
for the postfit case, which are both very similar to the
observed uncertainties reported in Eq. (3).
Constraining all signal yields to their SM predictions
results in an mH value that is about 70 MeV larger than the
nominal result with a comparable uncertainty. The increase
in the central value reflects the combined effect of the
higher-than-expected H → ZZ → 4l measured signal
strength and the increase of the H → ZZ branching fraction
with mH . Thus, the fit assuming SM couplings forces the
mass to a higher value in order to accommodate the value
μ ¼ 1 expected in the SM.
Since the discovery, both experiments have improved
their understanding of the electron, photon, and muon
measurements [16,30–34], leading to a significant reduction of the systematic uncertainties in the mass measurement. Nevertheless, the treatment and understanding of
systematic uncertainties is an important aspect of the
individual measurements and their combination. The combined analysis incorporates approximately 300 nuisance
parameters. Among these, approximately 100 are fitted
parameters describing the shapes and normalizations of the
background models in the H → γγ channel, including a
number of discrete parameters that allow the functional
form in each of the CMS H → γγ analysis categories to
be changed [35]. Of the remaining almost 200 nuisance
parameters, most correspond to experimental or theoretical
systematic uncertainties.
Based on the results from the individual experiments, the
dominant systematic uncertainties for the combined mH
result are expected to be those associated with the energy or
momentum scale and its resolution: for the photons in the
H → γγ channel and for the electrons and muons in the
H → ZZ → 4l channel [14–16]. These uncertainties are
assumed to be uncorrelated between the two experiments
since they are related to the specific characteristics of the
detectors as well as to the calibration procedures, which
are fully independent except for negligible effects due to
the use of the common Z boson mass [36] to specify
the absolute energy and momentum scales. Other experimental systematic uncertainties [14–16] are similarly
assumed to be uncorrelated between the two experiments.
Uncertainties in the theoretical predictions and in the
measured integrated luminosities are treated as fully and
partially correlated, respectively.
To evaluate the relative importance of the different
sources of systematic uncertainty, the nuisance parameters
are grouped according to their correspondence to three
broad classes of systematic uncertainty: (1) uncertainties in
the energy or momentum scale and resolution for photons,
electrons, and muons (“scale”), (2) theoretical uncertainties, e.g., uncertainties in the Higgs boson cross section and
branching fractions, and in the normalization of SM
background processes (“theory”), (3) other experimental
uncertainties (“other”).
First, the total uncertainty is obtained from the full profilelikelihood scan, as explained above. Next, parameters
associated with the scale terms are fixed and a new scan
is performed. Then, in addition to the scale terms, the
parameters associated with the theory terms are fixed and
a scan performed. Finally, in addition, the other parameters
are fixed and a scan performed. Thus the fits are performed
iteratively, with the different classes of nuisance parameters
cumulatively held fixed to their best-fit values. The uncertainties associated with the different classes of nuisance
parameters are defined by the difference in quadrature
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PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
between the uncertainties resulting from consecutive scans.
The statistical uncertainty is determined from the final scan,
with all nuisance parameters associated with systematic
terms held fixed, as explained above. The result is
mH ¼ 125.09 0.21 ðstatÞ 0.11 ðscaleÞ 0.02 ðotherÞ
0.01 ðtheoryÞ GeV;
ð8Þ
from which it is seen that the systematic uncertainty is indeed
dominated by the energy and momentum scale terms.
The result in Eq. (8) is consistent with the values of mH
derived from the less precise WW and ττ Higgs boson decay
modes [37–40].
The relative importance of the various sources of
systematic uncertainty is further investigated by dividing
the nuisance parameters into yet-finer groups, with each
group associated with a specific underlying effect, and
evaluating the impact of each group on the overall mass
uncertainty. The matching of nuisance parameters to an
effect is not strictly rigorous because nuisance parameters
in the two experiments do not always represent exactly the
same effect and in some cases multiple effects are related
to the same nuisance parameter. Nevertheless, the relative
impact of the different effects can be explored. A few
experiment-specific groups of nuisance parameters are
defined. For example, ATLAS includes a group of nuisance
parameters to account for the inaccuracy of the background
modeling for the H → γγ channel. To model this background, ATLAS uses specific analytic functions in each
category [14] while CMS simultaneously considers different background parametrizations [35]. The systematic
uncertainty in mH related to the background modeling in
CMS is estimated to be negligible [15].
The impact of groups of nuisance parameters is evaluated starting from the contribution of each individual
nuisance parameter to the total uncertainty. This contribution is defined as the mass shift δmH observed when
reevaluating the profile-likelihood ratio after fixing the
nuisance parameter in question to its best-fit value
increased or decreased by 1 standard deviation (σ) in its
distribution. For a nuisance parameter whose PDF is a
Gaussian distribution, this shift corresponds to the contribution of that particular nuisance parameter to the final
uncertainty. The impact of a group of nuisance parameters
is estimated by summing in quadrature the contributions
from the individual parameters.
The impacts δmH due to each of the considered effects are
listed in Table I. The results are reported for the four individual
channels, both for the data and (in parentheses) the prefit
Asimov data set. The row labeled “Systematic uncertainty
(sum in quadrature)” shows the total sums in quadrature of the
individual terms in the table. The row labeled “Systematic
uncertainty (nominal)” shows the corresponding total systematic uncertainties derived using the subtraction in quadrature method discussed in connection with Eq. (3). The two
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methods to evaluate the total systematic uncertainty are seen
to agree within 10 MeV, which is comparable with the
precision of the estimates. The two rightmost columns of
Table I list the contribution of each group of nuisance
parameters to the uncertainties in the combined mass measurement, for ATLAS and CMS separately.
The statistical and total uncertainties are summarized in
the bottom section of Table I. Since the weight of a channel
in the final combination is determined by the inverse of
the squared uncertainty, the approximate relative weights
for the combined result are 19% (H → γγ) and 18%
(H → ZZ → 4l) for ATLAS, and 40% (H → γγ) and
23% (H → ZZ → 4l) for CMS. These weights are reported
in the last row of Table I, along with the expected values.
Figure 3 presents the impact of each group of nuisance
parameters on the total systematic uncertainty in the mass
measurement of ATLAS, CMS, and the combination. For
the individual ATLAS and CMS measurements, the results
in Fig. 3 are approximately equivalent to the sum in
quadrature of the respective δmH terms in Table I multiplied by their analysis weights, after normalizing these
weights to correspond to either ATLAS only or CMS only.
The ATLAS and CMS combined results in Fig. 3 are the
sum in quadrature of the combined results in Table I.
The results in Table I and Fig. 3 establish that the largest
systematic effects for the mass uncertainty are those related
to the determination of the energy scale of the photons,
followed by those associated with the determination of
the electron and muon momentum scales. Since the CMS
H → γγ channel has the largest weight in the combination,
its impact on the systematic uncertainty of the combined
result is largest.
The mutual compatibility of the mH results from the four
individual channels is tested using a likelihood ratio with
four masses in the numerator and a common mass in the
denominator, and thus three degrees of freedom. The three
signal strengths are profiled in both the numerator and
denominator as in Eq. (1). The resulting compatibility,
defined as the asymptotic p value of the fit, is 10%.
Allowing the ATLAS and CMS signal strengths to vary
independently yields a compatibility of 7%. This latter fit
results in an mH value that is 40 MeV larger than the
nominal result.
The compatibility of the combined ATLAS and CMS
mass measurement in the H → γγ channel with the combined measurement in the H → ZZ → 4l channel is
evaluated using the variable ΔmγZ ≡ mH γγ − mH 4l as the
parameter of interest, with all other parameters, including
mH , profiled. Similarly, the compatibility of the ATLAS
combined mass measurement in the two channels with the
CMS combined measurement in the two channels is
evaluated using the variable Δmexpt ≡ mATLAS
− mCMS
H
H .
The observed results, ΔmγZ ¼ −0.1 0.5 GeV and
Δmexpt ¼ 0.4 0.5 GeV, are both consistent with zero
within 1σ. The difference between the mass values in
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PHYSICAL REVIEW LETTERS
TABLE I. Systematic uncertainties δmH (see text) associated with the indicated effects for each of the four input channels, and the
corresponding contributions of ATLAS and CMS to the systematic uncertainties of the combined result. “ECAL” refers to the
electromagnetic calorimeters. The numbers in parentheses indicate expected values obtained from the prefit Asimov data set discussed
in the text. The uncertainties for the combined result are related to the values of the individual channels through the relative weight of the
individual channel in the combination, which is proportional to the inverse of the respective uncertainty squared. The top section of the
table divides the sources of systematic uncertainty into three classes, which are discussed in the text. The bottom section of the table
shows the total systematic uncertainties estimated by adding the individual contributions in quadrature, the total systematic uncertainties
evaluated using the nominal method discussed in the text, the statistical uncertainties, the total uncertainties, and the analysis weights,
illustrative of the relative weight of each channel in the combined mH measurement.
Uncertainty in ATLAS
results (GeV):
observed (expected)
Scale uncertainties:
ATLAS ECAL nonlinearity
or CMS photon nonlinearity
Material in front of ECAL
ECAL longitudinal response
ECAL lateral shower shape
Photon energy resolution
ATLAS H → γγ vertex and
conversion reconstruction
Z → ee calibration
CMS electron energy scale
and resolution
Muon momentum scale
and resolution
Other uncertainties:
ATLAS H → γγ background
modeling
Integrated luminosity
Additional experimental
systematic uncertainties
Theory uncertainties:
Uncertainty in CMS
results (GeV):
observed (expected)
Uncertainty in combined
result (GeV):
observed (expected)
H → γγ
H → ZZ → 4l
H → γγ
H → ZZ → 4l
ATLAS
CMS
0.14 (0.16)
0.10 (0.13)
0.02 (0.04)
0.05 (0.06)
0.15
0.12
0.09
0.03
0.05
0.07 (0.07)
0.02 (0.01)
0.06 (0.06)
0.01 ð<0.01Þ
0.05 (0.04)
0.03 (0.02)
0.05 (0.05)
0.12 (0.09)
0.02 (0.01)
0.02 (0.02)
0.03 (0.02)
0.03 (0.04)
0.11 (0.10)
<0.01 ð0.01Þ
0.05 (0.02)
0.04 (0.03)
0.01 (0.01)
(0.13)
(0.13)
(0.08)
(0.01)
(0.05)
0.01 ð<0.01Þ
0.03 ð<0.01Þ
<0.01 ð<0.01Þ 0.01 ð<0.01Þ
<0.01 ð<0.01Þ 0.02 ð<0.01Þ
<0.01 ð<0.01Þ
0.01 ð<0.01Þ
<0.01 ð<0.01Þ <0.01 ð<0.01Þ 0.02 ð<0.01Þ < 0.01 ð<0.01Þ
0.03 (0.03)
0.04 (0.03)
0.02 (0.03)
0.01 (0.01)
0.02 (0.02)
0.03 (0.03)
0.02 ð<0.01Þ <0.01 ð<0.01Þ
0.01 (0.01)
0.01 ð<0.01Þ
0.01 ð<0.01Þ 0.01 ð<0.01Þ
0.01 ð<0.01Þ
Systematic uncertainty
(sum in quadrature)
Systematic uncertainty
(nominal)
Statistical uncertainty
0.27 (0.27)
0.04 (0.04)
0.15 (0.17)
0.16 (0.13)
0.11 (0.10)
0.27 (0.27)
0.04 (0.05)
0.15 (0.17)
0.17 (0.14)
0.11 (0.10)
0.43 (0.45)
0.52 (0.66)
0.31 (0.32)
0.42 (0.57)
0.21 (0.22)
Total uncertainty
Analysis weights
0.51 (0.52)
19% (22%)
0.52 (0.66)
18% (14%)
0.34 (0.36)
40% (46%)
0.45 (0.59)
23% (17%)
0.24 (0.24)
the two experiments is Δmexpt
γγ ¼ 1.3 0.6 GeV (2.1σ) for
the H → γγ channel and Δmexpt
4l ¼ −0.9 0.7 GeV (1.3σ)
for the H → ZZ → 4l channel. The combined results
exhibit a greater degree of compatibility than the results
from the individual decay channels because the Δmexpt
value has opposite signs in the two channels.
The compatibility of the signal strengths from
ATLAS and CMS is evaluated through the ratios
γγCMS
λexpt ¼ μATLAS =μCMS , λexpt
¼ μγγATLAS
and
F
ggFþtt̄H =μggFþtt̄H ,
expt
4lATLAS
4lCMS
=μ
. For this purpose, each ratio is
λ4l ¼ μ
individually taken to be the parameter of interest, with all
other nuisance parameters profiled, including the remaining
two ratios for the first two tests. We find λexpt ¼ 1.21þ0.30
−0.24 ,
expt
þ0.8
þ0.5
λexpt
¼
1.3
,
and
λ
¼
1.3
,
all
of
which
are
conF
−0.4
4l
−0.5
expt
sistent with unity within 1σ. The ratio λV ¼
γγCMS
μγγATLAS
VBFþVH =μVBFþVH is omitted because the ATLAS mass
measurement in the H → γγ channel is not sensitive
γγ
to μγγ
VBFþVH =μggFþtt̄H .
The correlation between the signal strength and the
measured mass is explored with 2D likelihood scans as
functions of μ and mH . The three signal strengths are
γγ
4l
assumed to be the same: μγγ
ggFþtt̄H ¼ μVBFþVH ¼ μ ≡ μ,
and thus the ratios of the production cross sections
times branching fractions are constrained to the SM
191803-6
week ending
15 MAY 2015
PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
ATLAS and CMS
LHC Run 1
Uncertainty in ATLAS
combined result
Uncertainty in CMS
combined result
Uncertainty in LHC
combined result
ATLAS ECAL nonlinearity /
CMS photon nonlinearity
Material in front of ECAL
ECAL longitudinal response
ECAL lateral shower shape
Photon energy resolution
ATLAS H → γ γ vertex and conversion
reconstruction
Z → ee calibration
CMS electron energy scale and resolution
Muon momentum scale and resolution
ATLAS H → γ γ background modeling
Integrated luminosity
ATLAS
Additional experimental
systematic uncertainties
CMS
Observed
Expected
Theory uncertainties
0
0.05
Combined
Observed
Expected
0.1
0
0.05
0.1
Observed
Expected
0
0.02 0.04 0.06
δ m H (GeV)
FIG. 3 (color online). The impacts δmH (see text) of the nuisance parameter groups in Table I on the ATLAS (left), CMS (center), and
combined (right) mass measurement uncertainty. The observed (expected) results are shown by the solid (empty) bars.
predictions. Assuming that the negative log-likelihood ratio
−2 ln Λðμ; mH Þ is distributed as a χ 2 variable with two
degrees of freedom, the 68% confidence level (C.L.)
confidence regions are shown in Fig. 4 for each individual
measurement, as well as for the combined result.
In summary, a combined measurement of the Higgs
boson mass is performed in the H → γγ and H → ZZ → 4l
channels using the LHC Run 1 data sets of the ATLAS
3
Signal strength (μ )
2.5
ATLAS H → γ γ
ATLAS H → ZZ → 4l
CMS H → γ γ
CMS H → ZZ → 4l
All combined
ATLAS and CMS
LHC Run 1
Best fit
68% C.L.
2
1.5
1
0.5
124
124.5
125
125.5
126
126.5
127
mH (GeV)
FIG. 4 (color online). Summary of likelihood scans in the 2D
plane of signal strength μ versus Higgs boson mass mH for the
ATLAS and CMS experiments. The 68% C.L. confidence regions
of the individual measurements are shown by the dashed curves
and of the overall combination by the solid curve. The markers
indicate the respective best-fit values. The SM signal strength is
indicated by the horizontal line at μ ¼ 1.
and CMS experiments, with minimal reliance on the
assumption that the Higgs boson behaves as predicted
by the SM.
The result is
mH ¼ 125.09 0.24 GeV
¼ 125.09 0.21 ðstatÞ 0.11 ðsystÞ GeV;
ð9Þ
where the total uncertainty is dominated by the statistical
term, with the systematic uncertainty dominated by effects
related to the photon, electron, and muon energy or
momentum scales and resolutions. Compatibility tests are
performed to ascertain whether the measurements are
consistent with each other, both between the different decay
channels and between the two experiments. All tests on
the combined results indicate consistency of the different
measurements within 1σ, while the four Higgs boson mass
measurements in the two channels of the two experiments
agree within 2σ. The combined measurement of the Higgs
boson mass improves upon the results from the individual
experiments and is the most precise measurement to date of
this fundamental parameter of the newly discovered particle.
We thank CERN for the very successful operation of the
LHC, as well as the support staff from our institutions
without whom ATLAS and CMS could not be operated
efficiently. We acknowledge the support of ANPCyT
(Argentina); YerPhI (Armenia); ARC (Australia);
BMWFW and FWF (Austria); ANAS (Azerbaijan);
SSTC (Belarus); FNRS and FWO (Belgium); CNPq,
CAPES, FAPERJ, and FAPESP (Brazil); MES
191803-7
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
(Bulgaria); NSERC, NRC, and CFI (Canada); CERN;
CONICYT (Chile); CAS, MoST, and NSFC (China);
COLCIENCIAS (Colombia); MSES and CSF (Croatia);
RPF (Cyprus); MSMT CR, MPO CR, and VSC CR (Czech
Republic); DNRF, DNSRC, and Lundbeck Foundation
(Denmark); MoER, ERC IUT, and ERDF (Estonia);
EPLANET, ERC, and NSRF (European Union);
Academy of Finland, MEC, and HIP (Finland); CEA,
CNRS/IN2P3 (France); GNSF (Georgia); BMBF, DFG,
HGF, MPG, and AvH Foundation (Germany); GSRT and
NSRF (Greece); RGC (Hong Kong SAR, China); OTKA
and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI
(Ireland); ISF, MINERVA, GIF, I-CORE, and Benoziyo
Center (Israel); INFN (Italy); MEXT and JSPS (Japan);
JINR; MSIP, and NRF (Republic of Korea); LAS
(Lithuania); MOE and UM (Malaysia); CINVESTAV,
CONACYT, SEP, and UASLP-FAI (Mexico); CNRST
(Morocco); FOM and NWO (Netherlands); MBIE (New
Zealand); BRF and RCN (Norway); PAEC (Pakistan);
MNiSW, MSHE, NCN, and NSC (Poland); GRICES and
FCT (Portugal); MNE/IFA (Romania); MES of Russia,
MON, RosAtom, RAS, and RFBR (Russian Federation);
MSTD and MESTD (Serbia); MSSR (Slovakia); ARRS
and MIZŠ (Slovenia); DST/NRF (South Africa); MINECO,
SEIDI, and CPAN (Spain); SRC and Wallenberg
Foundation (Sweden); ETH Board, ETH Zurich, PSI,
SER, SNSF, UniZH, and Cantons of Bern, Genève, and
Zurich (Switzerland); NSC (Taipei); MST (Taiwan);
ThEPCenter, IPST, STAR, and NSTDA (Thailand);
TUBITAK and TAEK (Turkey); NASU and SFFR
(Ukraine); STFC and the Royal Society and Leverhulme
Trust (U.K.); DOE and NSF (U.S.). In addition, we
gratefully acknowledge the crucial computing support from
all WLCG partners, in particular from CERN and the Tier-1
and Tier-2 facilities worldwide.
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PRL 114, 191803 (2015)
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D. Boumediene,34,† C. Bourdarios,117,† N. Bousson,114,† A. Boveia,30,† J. Boyd,30,† I. R. Boyko,65,† I. Bozic,13,†
J. Bracinik,18,† A. Brandt,8,† G. Brandt,54,† O. Brandt,58a,† U. Bratzler,156,† B. Brau,86,† J. E. Brau,116,† H. M. Braun,175,a,†
S. F. Brazzale,164a,164c,† K. Brendlinger,122,† A. J. Brennan,88,† L. Brenner,107,† R. Brenner,166,† S. Bressler,172,†
K. Bristow,145c,† T. M. Bristow,46,† D. Britton,53,† D. Britzger,42,† F. M. Brochu,28,† I. Brock,21,† R. Brock,90,† J. Bronner,101,†
G. Brooijmans,35,† T. Brooks,77,† W. K. Brooks,32b,† J. Brosamer,15,† E. Brost,116,† J. Brown,55,†
P. A. Bruckman de Renstrom,39,† D. Bruncko,144b,† R. Bruneliere,48,† A. Bruni,20a,† G. Bruni,20a,† M. Bruschi,20a,†
L. Bryngemark,81,† T. Buanes,14,† Q. Buat,142,† P. Buchholz,141,† A. G. Buckley,53,† S. I. Buda,26a,† I. A. Budagov,65,†
F. Buehrer,48,† L. Bugge,119,† M. K. Bugge,119,† O. Bulekov,98,† D. Bullock,8,† H. Burckhart,30,† S. Burdin,74,†
B. Burghgrave,108,† S. Burke,131,† I. Burmeister,43,† E. Busato,34,† D. Büscher,48,† V. Büscher,83,† P. Bussey,53,†
C. P. Buszello,166,† J. M. Butler,22,† A. I. Butt,3,† C. M. Buttar,53,† J. M. Butterworth,78,† P. Butti,107,† W. Buttinger,25,†
A. Buzatu,53,† R. Buzykaev,109,d,† S. Cabrera Urbán,167,† D. Caforio,128,† V. M. Cairo,37a,37b,† O. Cakir,4a,† P. Calafiura,15,†
A. Calandri,136,† G. Calderini,80,† P. Calfayan,100,† L. P. Caloba,24a,† D. Calvet,34,† S. Calvet,34,† R. Camacho Toro,31,†
S. Camarda,42,† P. Camarri,133a,133b,† D. Cameron,119,† L. M. Caminada,15,† R. Caminal Armadans,12,† S. Campana,30,†
M. Campanelli,78,† A. Campoverde,148,† V. Canale,104a,104b,† A. Canepa,159a,† M. Cano Bret,76,† J. Cantero,82,†
R. Cantrill,126a,† T. Cao,40,† M. D. M. Capeans Garrido,30,† I. Caprini,26a,† M. Caprini,26a,† M. Capua,37a,37b,† R. Caputo,83,†
R. Cardarelli,133a,† T. Carli,30,† G. Carlino,104a,† L. Carminati,91a,91b,† S. Caron,106,† E. Carquin,32a,† G. D. Carrillo-Montoya,8,†
J. R. Carter,28,† J. Carvalho,126a,126c,† D. Casadei,78,† M. P. Casado,12,† M. Casolino,12,† E. Castaneda-Miranda,145b,†
A. Castelli,107,† V. Castillo Gimenez,167,† N. F. Castro,126a,h,† P. Catastini,57,† A. Catinaccio,30,† J. R. Catmore,119,†
A. Cattai,30,† J. Caudron,83,† V. Cavaliere,165,† D. Cavalli,91a,† M. Cavalli-Sforza,12,† V. Cavasinni,124a,124b,†
F. Ceradini,134a,134b,† B. C. Cerio,45,† K. Cerny,129,† A. S. Cerqueira,24b,† A. Cerri,149,† L. Cerrito,76,† F. Cerutti,15,† M. Cerv,30,†
A. Cervelli,17,† S. A. Cetin,19b,† A. Chafaq,135a,† D. Chakraborty,108,† I. Chalupkova,129,† P. Chang,165,† B. Chapleau,87,†
J. D. Chapman,28,† D. G. Charlton,18,† C. C. Chau,158,† C. A. Chavez Barajas,149,† S. Cheatham,152,† A. Chegwidden,90,†
S. Chekanov,6,† S. V. Chekulaev,159a,† G. A. Chelkov,65,i,† M. A. Chelstowska,89,† C. Chen,64,† H. Chen,25,† K. Chen,148,†
L. Chen,33d,j,† S. Chen,33c,† X. Chen,33f,† Y. Chen,67,† H. C. Cheng,89,† Y. Cheng,31,† A. Cheplakov,65,† E. Cheremushkina,130,†
R. Cherkaoui El Moursli,135e,† V. Chernyatin,25,a,† E. Cheu,7,† L. Chevalier,136,† V. Chiarella,47,† J. T. Childers,6,†
G. Chiodini,73a,† A. S. Chisholm,18,† R. T. Chislett,78,† A. Chitan,26a,† M. V. Chizhov,65,† K. Choi,61,† S. Chouridou,9,†
B. K. B. Chow,100,† V. Christodoulou,78,† D. Chromek-Burckhart,30,† M. L. Chu,151,† J. Chudoba,127,† A. J. Chuinard,87,†
J. J. Chwastowski,39,† L. Chytka,115,† G. Ciapetti,132a,132b,† A. K. Ciftci,4a,† D. Cinca,53,† V. Cindro,75,† I. A. Cioara,21,†
A. Ciocio,15,† Z. H. Citron,172,† M. Ciubancan,26a,† A. Clark,49,† B. L. Clark,57,† P. J. Clark,46,† R. N. Clarke,15,†
W. Cleland,125,† C. Clement,146a,146b,† Y. Coadou,85,† M. Cobal,164a,164c,† A. Coccaro,138,† J. Cochran,64,† L. Coffey,23,†
191803-10
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
J. G. Cogan,143,† B. Cole,35,† S. Cole,108,† A. P. Colijn,107,† J. Collot,55,† T. Colombo,58c,† G. Compostella,101,†
P. Conde Muiño,126a,126b,† E. Coniavitis,48,† S. H. Connell,145b,† I. A. Connelly,77,† S. M. Consonni,91a,91b,† V. Consorti,48,†
S. Constantinescu,26a,† C. Conta,121a,121b,† G. Conti,30,† F. Conventi,104a,k,† M. Cooke,15,† B. D. Cooper,78,†
A. M. Cooper-Sarkar,120,† T. Cornelissen,175,† M. Corradi,20a,† F. Corriveau,87,l,† A. Corso-Radu,163,† A. Cortes-Gonzalez,12,†
G. Cortiana,101,† G. Costa,91a,† M. J. Costa,167,† D. Costanzo,139,† D. Côté,8,† G. Cottin,28,† G. Cowan,77,† B. E. Cox,84,†
K. Cranmer,110,† G. Cree,29,† S. Crépé-Renaudin,55,† F. Crescioli,80,† W. A. Cribbs,146a,146b,† M. Crispin Ortuzar,120,†
M. Cristinziani,21,† V. Croft,106,† G. Crosetti,37a,37b,† T. Cuhadar Donszelmann,139,† J. Cummings,176,† M. Curatolo,47,†
C. Cuthbert,150,† H. Czirr,141,† P. Czodrowski,3,† S. D’Auria,53,† M. D’Onofrio,74,†
M. J. Da Cunha Sargedas De Sousa,126a,126b,† C. Da Via,84,† W. Dabrowski,38a,† A. Dafinca,120,† T. Dai,89,† O. Dale,14,†
F. Dallaire,95,† C. Dallapiccola,86,† M. Dam,36,† J. R. Dandoy,31,† N. P. Dang,48,† A. C. Daniells,18,† M. Danninger,168,†
M. Dano Hoffmann,136,† V. Dao,48,† G. Darbo,50a,† S. Darmora,8,† J. Dassoulas,3,† A. Dattagupta,61,† W. Davey,21,†
C. David,169,† T. Davidek,129,† E. Davies,120,m,† M. Davies,153,† P. Davison,78,† Y. Davygora,58a,† E. Dawe,88,† I. Dawson,139,†
R. K. Daya-Ishmukhametova,86,† K. De,8,† R. de Asmundis,104a,† S. De Castro,20a,20b,† S. De Cecco,80,† N. De Groot,106,†
P. de Jong,107,† H. De la Torre,82,† F. De Lorenzi,64,† L. De Nooij,107,† D. De Pedis,132a,† A. De Salvo,132a,† U. De Sanctis,149,†
A. De Santo,149,† J. B. De Vivie De Regie,117,† W. J. Dearnaley,72,† R. Debbe,25,† C. Debenedetti,137,† D. V. Dedovich,65,†
I. Deigaard,107,† J. Del Peso,82,† T. Del Prete,124a,124b,† D. Delgove,117,† F. Deliot,136,† C. M. Delitzsch,49,† M. Deliyergiyev,75,†
A. Dell’Acqua,30,† L. Dell’Asta,22,† M. Dell’Orso,124a,124b,† M. Della Pietra,104a,k,† D. della Volpe,49,† M. Delmastro,5,†
P. A. Delsart,55,† C. Deluca,107,† D. A. DeMarco,158,† S. Demers,176,† M. Demichev,65,† A. Demilly,80,† S. P. Denisov,130,†
D. Derendarz,39,† J. E. Derkaoui,135d,† F. Derue,80,† P. Dervan,74,† K. Desch,21,† C. Deterre,42,† P. O. Deviveiros,30,†
A. Dewhurst,131,† S. Dhaliwal,107,† A. Di Ciaccio,133a,133b,† L. Di Ciaccio,5,† A. Di Domenico,132a,132b,† C. Di Donato,104a,104b,†
A. Di Girolamo,30,† B. Di Girolamo,30,† A. Di Mattia,152,† B. Di Micco,134a,134b,† R. Di Nardo,47,† A. Di Simone,48,†
R. Di Sipio,158,† D. Di Valentino,29,† C. Diaconu,85,† M. Diamond,158,† F. A. Dias,46,† M. A. Diaz,32a,† E. B. Diehl,89,†
J. Dietrich,16,† S. Diglio,85,† A. Dimitrievska,13,† J. Dingfelder,21,† P. Dita,26a,† S. Dita,26a,† F. Dittus,30,† F. Djama,85,†
T. Djobava,51b,† J. I. Djuvsland,58a,† M. A. B. do Vale,24c,† D. Dobos,30,† M. Dobre,26a,† C. Doglioni,49,† T. Dohmae,155,†
J. Dolejsi,129,† Z. Dolezal,129,† B. A. Dolgoshein,98,a,† M. Donadelli,24d,† S. Donati,124a,124b,† P. Dondero,121a,121b,†
J. Donini,34,† J. Dopke,131,† A. Doria,104a,† M. T. Dova,71,† A. T. Doyle,53,† E. Drechsler,54,† M. Dris,10,† E. Dubreuil,34,†
E. Duchovni,172,† G. Duckeck,100,† O. A. Ducu,26a,85,† D. Duda,175,† A. Dudarev,30,† L. Duflot,117,† L. Duguid,77,†
M. Dührssen,30,† M. Dunford,58a,† H. Duran Yildiz,4a,† M. Düren,52,† A. Durglishvili,51b,† D. Duschinger,44,† M. Dyndal,38a,†
C. Eckardt,42,† K. M. Ecker,101,† R. C. Edgar,89,† W. Edson,2,† N. C. Edwards,46,† W. Ehrenfeld,21,† T. Eifert,30,† G. Eigen,14,†
K. Einsweiler,15,† T. Ekelof,166,† M. El Kacimi,135c,† M. Ellert,166,† S. Elles,5,† F. Ellinghaus,83,† A. A. Elliot,169,† N. Ellis,30,†
J. Elmsheuser,100,† M. Elsing,30,† D. Emeliyanov,131,† Y. Enari,155,† O. C. Endner,83,† M. Endo,118,† R. Engelmann,148,†
J. Erdmann,43,† A. Ereditato,17,† G. Ernis,175,† J. Ernst,2,† M. Ernst,25,† S. Errede,165,† E. Ertel,83,† M. Escalier,117,† H. Esch,43,†
C. Escobar,125,† B. Esposito,47,† A. I. Etienvre,136,† E. Etzion,153,† H. Evans,61,† A. Ezhilov,123,† L. Fabbri,20a,20b,† G. Facini,31,†
R. M. Fakhrutdinov,130,† S. Falciano,132a,† R. J. Falla,78,† J. Faltova,129,† Y. Fang,33a,† M. Fanti,91a,91b,† A. Farbin,8,†
A. Farilla,134a,† T. Farooque,12,† S. Farrell,15,† S. M. Farrington,170,† P. Farthouat,30,† F. Fassi,135e,† P. Fassnacht,30,†
D. Fassouliotis,9,† M. Faucci Giannelli,77,† A. Favareto,50a,50b,† L. Fayard,117,† P. Federic,144a,† O. L. Fedin,123,n,†
W. Fedorko,168,† S. Feigl,30,† L. Feligioni,85,† C. Feng,33d,† E. J. Feng,6,† H. Feng,89,† A. B. Fenyuk,130,†
P. Fernandez Martinez,167,† S. Fernandez Perez,30,† S. Ferrag,53,† J. Ferrando,53,† A. Ferrari,166,† P. Ferrari,107,† R. Ferrari,121a,†
D. E. Ferreira de Lima,53,† A. Ferrer,167,† D. Ferrere,49,† C. Ferretti,89,† A. Ferretto Parodi,50a,50b,† M. Fiascaris,31,†
F. Fiedler,83,† A. Filipčič,75,† M. Filipuzzi,42,† F. Filthaut,106,† M. Fincke-Keeler,169,† K. D. Finelli,150,†
M. C. N. Fiolhais,126a,126c,† L. Fiorini,167,† A. Firan,40,† A. Fischer,2,† C. Fischer,12,† J. Fischer,175,† W. C. Fisher,90,†
E. A. Fitzgerald,23,† M. Flechl,48,† I. Fleck,141,† P. Fleischmann,89,† S. Fleischmann,175,† G. T. Fletcher,139,† G. Fletcher,76,†
T. Flick,175,† A. Floderus,81,† L. R. Flores Castillo,60a,† M. J. Flowerdew,101,† A. Formica,136,† A. Forti,84,† D. Fournier,117,†
H. Fox,72,† S. Fracchia,12,† P. Francavilla,80,† M. Franchini,20a,20b,† D. Francis,30,† L. Franconi,119,† M. Franklin,57,†
M. Fraternali,121a,121b,† D. Freeborn,78,† S. T. French,28,† F. Friedrich,44,† D. Froidevaux,30,† J. A. Frost,120,† C. Fukunaga,156,†
E. Fullana Torregrosa,83,† B. G. Fulsom,143,† J. Fuster,167,† C. Gabaldon,55,† O. Gabizon,175,† A. Gabrielli,20a,20b,†
A. Gabrielli,132a,132b,† S. Gadatsch,107,† S. Gadomski,49,† G. Gagliardi,50a,50b,† P. Gagnon,61,† C. Galea,106,†
B. Galhardo,126a,126c,† E. J. Gallas,120,† B. J. Gallop,131,† P. Gallus,128,† G. Galster,36,† K. K. Gan,111,† J. Gao,33b,85,† Y. Gao,46,†
Y. S. Gao,143,f,† F. M. Garay Walls,46,† F. Garberson,176,† C. García,167,† J. E. García Navarro,167,† M. Garcia-Sciveres,15,†
191803-11
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
R. W. Gardner,31,† N. Garelli,143,† V. Garonne,119,† C. Gatti,47,† A. Gaudiello,50a,50b,† G. Gaudio,121a,† B. Gaur,141,†
L. Gauthier,95,† P. Gauzzi,132a,132b,† I. L. Gavrilenko,96,† C. Gay,168,† G. Gaycken,21,† E. N. Gazis,10,† P. Ge,33d,† Z. Gecse,168,†
C. N. P. Gee,131,† D. A. A. Geerts,107,† Ch. Geich-Gimbel,21,† M. P. Geisler,58a,† C. Gemme,50a,† M. H. Genest,55,†
S. Gentile,132a,132b,† M. George,54,† S. George,77,† D. Gerbaudo,163,† A. Gershon,153,† H. Ghazlane,135b,† B. Giacobbe,20a,†
S. Giagu,132a,132b,† V. Giangiobbe,12,† P. Giannetti,124a,124b,† B. Gibbard,25,† S. M. Gibson,77,† M. Gilchriese,15,†
T. P. S. Gillam,28,† D. Gillberg,30,† G. Gilles,34,† D. M. Gingrich,3,e,† N. Giokaris,9,† M. P. Giordani,164a,164c,† F. M. Giorgi,20a,†
F. M. Giorgi,16,† P. F. Giraud,136,† P. Giromini,47,† D. Giugni,91a,† C. Giuliani,48,† M. Giulini,58b,† B. K. Gjelsten,119,†
S. Gkaitatzis,154,† I. Gkialas,154,† E. L. Gkougkousis,117,† L. K. Gladilin,99,† C. Glasman,82,† J. Glatzer,30,†
P. C. F. Glaysher,46,† A. Glazov,42,† M. Goblirsch-Kolb,101,† J. R. Goddard,76,† J. Godlewski,39,† S. Goldfarb,89,†
T. Golling,49,† D. Golubkov,130,† A. Gomes,126a,126b,126d,† R. Gonçalo,126a,† J. Goncalves Pinto Firmino Da Costa,136,†
L. Gonella,21,† S. González de la Hoz,167,† G. Gonzalez Parra,12,† S. Gonzalez-Sevilla,49,† L. Goossens,30,†
P. A. Gorbounov,97,† H. A. Gordon,25,† I. Gorelov,105,† B. Gorini,30,† E. Gorini,73a,73b,† A. Gorišek,75,† E. Gornicki,39,†
A. T. Goshaw,45,† C. Gössling,43,† M. I. Gostkin,65,† D. Goujdami,135c,† A. G. Goussiou,138,† N. Govender,145b,†
H. M. X. Grabas,137,† L. Graber,54,† I. Grabowska-Bold,38a,† P. Grafström,20a,20b,† K-J. Grahn,42,† J. Gramling,49,†
E. Gramstad,119,† S. Grancagnolo,16,† V. Grassi,148,† V. Gratchev,123,† H. M. Gray,30,† E. Graziani,134a,† Z. D. Greenwood,79,o,†
K. Gregersen,78,† I. M. Gregor,42,† P. Grenier,143,† J. Griffiths,8,† A. A. Grillo,137,† K. Grimm,72,† S. Grinstein,12,p,†
Ph. Gris,34,† J.-F. Grivaz,117,† J. P. Grohs,44,† A. Grohsjean,42,† E. Gross,172,† J. Grosse-Knetter,54,† G. C. Grossi,79,†
Z. J. Grout,149,† L. Guan,33b,† J. Guenther,128,† F. Guescini,49,† D. Guest,176,† O. Gueta,153,† E. Guido,50a,50b,† T. Guillemin,117,†
S. Guindon,2,† U. Gul,53,† C. Gumpert,44,† J. Guo,33e,† S. Gupta,120,† P. Gutierrez,113,† N. G. Gutierrez Ortiz,53,†
C. Gutschow,44,† C. Guyot,136,† C. Gwenlan,120,† C. B. Gwilliam,74,† A. Haas,110,† C. Haber,15,† H. K. Hadavand,8,†
N. Haddad,135e,† P. Haefner,21,† S. Hageböck,21,† Z. Hajduk,39,† H. Hakobyan,177,† M. Haleem,42,† J. Haley,114,† D. Hall,120,†
G. Halladjian,90,† G. D. Hallewell,85,† K. Hamacher,175,† P. Hamal,115,† K. Hamano,169,† M. Hamer,54,† A. Hamilton,145a,†
G. N. Hamity,145c,† P. G. Hamnett,42,† L. Han,33b,† K. Hanagaki,118,† K. Hanawa,155,† M. Hance,15,† P. Hanke,58a,†
R. Hanna,136,† J. B. Hansen,36,† J. D. Hansen,36,† M. C. Hansen,21,† P. H. Hansen,36,† K. Hara,160,† A. S. Hard,173,†
T. Harenberg,175,† F. Hariri,117,† S. Harkusha,92,† R. D. Harrington,46,† P. F. Harrison,170,† F. Hartjes,107,† M. Hasegawa,67,†
S. Hasegawa,103,† Y. Hasegawa,140,† A. Hasib,113,† S. Hassani,136,† S. Haug,17,† R. Hauser,90,† L. Hauswald,44,†
M. Havranek,127,† C. M. Hawkes,18,† R. J. Hawkings,30,† A. D. Hawkins,81,† T. Hayashi,160,† D. Hayden,90,† C. P. Hays,120,†
J. M. Hays,76,† H. S. Hayward,74,† S. J. Haywood,131,† S. J. Head,18,† T. Heck,83,† V. Hedberg,81,† L. Heelan,8,† S. Heim,122,†
T. Heim,175,† B. Heinemann,15,† L. Heinrich,110,† J. Hejbal,127,† L. Helary,22,† S. Hellman,146a,146b,† D. Hellmich,21,†
C. Helsens,30,† J. Henderson,120,† R. C. W. Henderson,72,† Y. Heng,173,† C. Hengler,42,† A. Henrichs,176,†
A. M. Henriques Correia,30,† S. Henrot-Versille,117,† G. H. Herbert,16,† Y. Hernández Jiménez,167,† R. Herrberg-Schubert,16,†
G. Herten,48,† R. Hertenberger,100,† L. Hervas,30,† G. G. Hesketh,78,† N. P. Hessey,107,† J. W. Hetherly,40,† R. Hickling,76,†
E. Higón-Rodriguez,167,† E. Hill,169,† J. C. Hill,28,† K. H. Hiller,42,† S. J. Hillier,18,† I. Hinchliffe,15,† E. Hines,122,†
R. R. Hinman,15,† M. Hirose,157,† D. Hirschbuehl,175,† J. Hobbs,148,† N. Hod,107,† M. C. Hodgkinson,139,† P. Hodgson,139,†
A. Hoecker,30,† M. R. Hoeferkamp,105,† F. Hoenig,100,† M. Hohlfeld,83,† D. Hohn,21,† T. R. Holmes,15,† T. M. Hong,122,†
L. Hooft van Huysduynen,110,† W. H. Hopkins,116,† Y. Horii,103,† A. J. Horton,142,† J-Y. Hostachy,55,† S. Hou,151,†
A. Hoummada,135a,† J. Howard,120,† J. Howarth,42,† M. Hrabovsky,115,† I. Hristova,16,† J. Hrivnac,117,† T. Hryn’ova,5,†
A. Hrynevich,93,† C. Hsu,145c,† P. J. Hsu,151,q,† S.-C. Hsu,138,† D. Hu,35,† Q. Hu,33b,† X. Hu,89,† Y. Huang,42,† Z. Hubacek,30,†
F. Hubaut,85,† F. Huegging,21,† T. B. Huffman,120,† E. W. Hughes,35,† G. Hughes,72,† M. Huhtinen,30,† T. A. Hülsing,83,†
N. Huseynov,65,c,† J. Huston,90,† J. Huth,57,† G. Iacobucci,49,† G. Iakovidis,25,† I. Ibragimov,141,† L. Iconomidou-Fayard,117,†
E. Ideal,176,† Z. Idrissi,135e,† P. Iengo,30,† O. Igonkina,107,† T. Iizawa,171,† Y. Ikegami,66,† K. Ikematsu,141,† M. Ikeno,66,†
Y. Ilchenko,31,r,† D. Iliadis,154,† N. Ilic,143,† Y. Inamaru,67,† T. Ince,101,† P. Ioannou,9,† M. Iodice,134a,† K. Iordanidou,35,†
V. Ippolito,57,† A. Irles Quiles,167,† C. Isaksson,166,† M. Ishino,68,† M. Ishitsuka,157,† R. Ishmukhametov,111,† C. Issever,120,†
S. Istin,19a,† J. M. Iturbe Ponce,84,† R. Iuppa,133a,133b,† J. Ivarsson,81,† W. Iwanski,39,† H. Iwasaki,66,† J. M. Izen,41,†
V. Izzo,104a,† S. Jabbar,3,† B. Jackson,122,† M. Jackson,74,† P. Jackson,1,† M. R. Jaekel,30,† V. Jain,2,† K. Jakobs,48,†
S. Jakobsen,30,† T. Jakoubek,127,† J. Jakubek,128,† D. O. Jamin,151,† D. K. Jana,79,† E. Jansen,78,† R. W. Jansky,62,†
J. Janssen,21,† M. Janus,170,† G. Jarlskog,81,† N. Javadov,65,c,† T. Javůrek,48,† L. Jeanty,15,† J. Jejelava,51a,s,† G.-Y. Jeng,150,†
D. Jennens,88,† P. Jenni,48,t,† J. Jentzsch,43,† C. Jeske,170,† S. Jézéquel,5,† H. Ji,173,† J. Jia,148,† Y. Jiang,33b,† S. Jiggins,78,†
J. Jimenez Pena,167,† S. Jin,33a,† A. Jinaru,26a,† O. Jinnouchi,157,† M. D. Joergensen,36,† P. Johansson,139,† K. A. Johns,7,†
191803-12
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
K. Jon-And,146a,146b,† G. Jones,170,† R. W. L. Jones,72,† T. J. Jones,74,† J. Jongmanns,58a,† P. M. Jorge,126a,126b,† K. D. Joshi,84,†
J. Jovicevic,159a,† X. Ju,173,† C. A. Jung,43,† P. Jussel,62,† A. Juste Rozas,12,p,† M. Kaci,167,† A. Kaczmarska,39,† M. Kado,117,†
H. Kagan,111,† M. Kagan,143,† S. J. Kahn,85,† E. Kajomovitz,45,† C. W. Kalderon,120,† S. Kama,40,† A. Kamenshchikov,130,†
N. Kanaya,155,† M. Kaneda,30,† S. Kaneti,28,† V. A. Kantserov,98,† J. Kanzaki,66,† B. Kaplan,110,† A. Kapliy,31,† D. Kar,53,†
K. Karakostas,10,† A. Karamaoun,3,† N. Karastathis,10,107,† M. J. Kareem,54,† M. Karnevskiy,83,† S. N. Karpov,65,†
Z. M. Karpova,65,† K. Karthik,110,† V. Kartvelishvili,72,† A. N. Karyukhin,130,† L. Kashif,173,† R. D. Kass,111,† A. Kastanas,14,†
Y. Kataoka,155,† A. Katre,49,† J. Katzy,42,† K. Kawagoe,70,† T. Kawamoto,155,† G. Kawamura,54,† S. Kazama,155,†
V. F. Kazanin,109,d,† M. Y. Kazarinov,65,† R. Keeler,169,† R. Kehoe,40,† J. S. Keller,42,† J. J. Kempster,77,† H. Keoshkerian,84,†
O. Kepka,127,† B. P. Kerševan,75,† S. Kersten,175,† R. A. Keyes,87,† F. Khalil-zada,11,† H. Khandanyan,146a,146b,†
A. Khanov,114,† A. G. Kharlamov,109,d,† T. J. Khoo,28,† V. Khovanskiy,97,† E. Khramov,65,† J. Khubua,51b,u,† H. Y. Kim,8,†
H. Kim,146a,146b,† S. H. Kim,160,† Y. Kim,31,† N. Kimura,154,† O. M. Kind,16,† B. T. King,74,† M. King,167,† R. S. B. King,120,†
S. B. King,168,† J. Kirk,131,† A. E. Kiryunin,101,† T. Kishimoto,67,† D. Kisielewska,38a,† F. Kiss,48,† K. Kiuchi,160,†
O. Kivernyk,136,† E. Kladiva,144b,† M. H. Klein,35,† M. Klein,74,† U. Klein,74,† K. Kleinknecht,83,† P. Klimek,146a,146b,†
A. Klimentov,25,† R. Klingenberg,43,† J. A. Klinger,84,† T. Klioutchnikova,30,† E.-E. Kluge,58a,† P. Kluit,107,† S. Kluth,101,†
E. Kneringer,62,† E. B. F. G. Knoops,85,† A. Knue,53,† A. Kobayashi,155,† D. Kobayashi,157,† T. Kobayashi,155,† M. Kobel,44,†
M. Kocian,143,† P. Kodys,129,† T. Koffas,29,† E. Koffeman,107,† L. A. Kogan,120,† S. Kohlmann,175,† Z. Kohout,128,†
T. Kohriki,66,† T. Koi,143,† H. Kolanoski,16,† I. Koletsou,5,† A. A. Komar,96,a,† Y. Komori,155,† T. Kondo,66,†
N. Kondrashova,42,† K. Köneke,48,† A. C. König,106,† S. König,83,† T. Kono,66,v,† R. Konoplich,110,w,† N. Konstantinidis,78,†
R. Kopeliansky,152,† S. Koperny,38a,† L. Köpke,83,† A. K. Kopp,48,† K. Korcyl,39,† K. Kordas,154,† A. Korn,78,†
A. A. Korol,109,d,† I. Korolkov,12,† E. V. Korolkova,139,† O. Kortner,101,† S. Kortner,101,† T. Kosek,129,† V. V. Kostyukhin,21,†
V. M. Kotov,65,† A. Kotwal,45,† A. Kourkoumeli-Charalampidi,154,† C. Kourkoumelis,9,† V. Kouskoura,25,†
A. Koutsman,159a,† R. Kowalewski,169,† T. Z. Kowalski,38a,† W. Kozanecki,136,† A. S. Kozhin,130,† V. A. Kramarenko,99,†
G. Kramberger,75,† D. Krasnopevtsev,98,† A. Krasznahorkay,30,† J. K. Kraus,21,† A. Kravchenko,25,† S. Kreiss,110,†
M. Kretz,58c,† J. Kretzschmar,74,† K. Kreutzfeldt,52,† P. Krieger,158,† K. Krizka,31,† K. Kroeninger,43,† H. Kroha,101,†
J. Kroll,122,† J. Kroseberg,21,† J. Krstic,13,† U. Kruchonak,65,† H. Krüger,21,† N. Krumnack,64,† Z. V. Krumshteyn,65,†
A. Kruse,173,† M. C. Kruse,45,† M. Kruskal,22,† T. Kubota,88,† H. Kucuk,78,† S. Kuday,4b,† S. Kuehn,48,† A. Kugel,58c,†
F. Kuger,174,† A. Kuhl,137,† T. Kuhl,42,† V. Kukhtin,65,† Y. Kulchitsky,92,† S. Kuleshov,32b,† M. Kuna,132a,132b,† T. Kunigo,68,†
A. Kupco,127,† H. Kurashige,67,† Y. A. Kurochkin,92,† R. Kurumida,67,† V. Kus,127,† E. S. Kuwertz,169,† M. Kuze,157,†
J. Kvita,115,† T. Kwan,169,† D. Kyriazopoulos,139,† A. La Rosa,49,† J. L. La Rosa Navarro,24d,† L. La Rotonda,37a,37b,†
C. Lacasta,167,† F. Lacava,132a,132b,† J. Lacey,29,† H. Lacker,16,† D. Lacour,80,† V. R. Lacuesta,167,† E. Ladygin,65,† R. Lafaye,5,†
B. Laforge,80,† T. Lagouri,176,† S. Lai,48,† L. Lambourne,78,† S. Lammers,61,† C. L. Lampen,7,† W. Lampl,7,† E. Lançon,136,†
U. Landgraf,48,† M. P. J. Landon,76,† V. S. Lang,58a,† J. C. Lange,12,† A. J. Lankford,163,† F. Lanni,25,† K. Lantzsch,30,†
S. Laplace,80,† C. Lapoire,30,† J. F. Laporte,136,† T. Lari,91a,† F. Lasagni Manghi,20a,20b,† M. Lassnig,30,† P. Laurelli,47,†
W. Lavrijsen,15,† A. T. Law,137,† P. Laycock,74,† O. Le Dortz,80,† E. Le Guirriec,85,† E. Le Menedeu,12,† M. LeBlanc,169,†
T. LeCompte,6,† F. Ledroit-Guillon,55,† C. A. Lee,145b,† S. C. Lee,151,† L. Lee,1,† G. Lefebvre,80,† M. Lefebvre,169,†
F. Legger,100,† C. Leggett,15,† A. Lehan,74,† G. Lehmann Miotto,30,† X. Lei,7,† W. A. Leight,29,† A. Leisos,154,†
A. G. Leister,176,† M. A. L. Leite,24d,† R. Leitner,129,† D. Lellouch,172,† B. Lemmer,54,† K. J. C. Leney,78,† T. Lenz,21,†
B. Lenzi,30,† R. Leone,7,† S. Leone,124a,124b,† C. Leonidopoulos,46,† S. Leontsinis,10,† C. Leroy,95,† C. G. Lester,28,†
M. Levchenko,123,† J. Levêque,5,† D. Levin,89,† L. J. Levinson,172,† M. Levy,18,† A. Lewis,120,† A. M. Leyko,21,†
M. Leyton,41,† B. Li,33b,x,† H. Li,148,† H. L. Li,31,† L. Li,45,† L. Li,33e,† S. Li,45,† Y. Li,33c,y,† Z. Liang,137,† H. Liao,34,†
B. Liberti,133a,† A. Liblong,158,† P. Lichard,30,† K. Lie,165,† J. Liebal,21,† W. Liebig,14,† C. Limbach,21,† A. Limosani,150,†
S. C. Lin,151,z,† T. H. Lin,83,† F. Linde,107,† B. E. Lindquist,148,† J. T. Linnemann,90,† E. Lipeles,122,† A. Lipniacka,14,†
M. Lisovyi,58b,† T. M. Liss,165,† D. Lissauer,25,† A. Lister,168,† A. M. Litke,137,† B. Liu,151,aa,† D. Liu,151,† J. Liu,85,†
J. B. Liu,33b,† K. Liu,85,† L. Liu,165,† M. Liu,45,† M. Liu,33b,† Y. Liu,33b,† M. Livan,121a,121b,† A. Lleres,55,†
J. Llorente Merino,82,† S. L. Lloyd,76,† F. Lo Sterzo,151,† E. Lobodzinska,42,† P. Loch,7,† W. S. Lockman,137,†
F. K. Loebinger,84,† A. E. Loevschall-Jensen,36,† A. Loginov,176,† T. Lohse,16,† K. Lohwasser,42,† M. Lokajicek,127,†
B. A. Long,22,† J. D. Long,89,† R. E. Long,72,† K. A. Looper,111,† L. Lopes,126a,† D. Lopez Mateos,57,† B. Lopez Paredes,139,†
I. Lopez Paz,12,† J. Lorenz,100,† N. Lorenzo Martinez,61,† M. Losada,162,† P. Loscutoff,15,† P. J. Lösel,100,† X. Lou,33a,†
A. Lounis,117,† J. Love,6,† P. A. Love,72,† N. Lu,89,† H. J. Lubatti,138,† C. Luci,132a,132b,† A. Lucotte,55,† F. Luehring,61,†
191803-13
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
W. Lukas,62,† L. Luminari,132a,† O. Lundberg,146a,146b,† B. Lund-Jensen,147,† D. Lynn,25,† R. Lysak,127,† E. Lytken,81,†
H. Ma,25,† L. L. Ma,33d,† G. Maccarrone,47,† A. Macchiolo,101,† C. M. Macdonald,139,† J. Machado Miguens,122,126b,†
D. Macina,30,† D. Madaffari,85,† R. Madar,34,† H. J. Maddocks,72,† W. F. Mader,44,† A. Madsen,166,† S. Maeland,14,†
T. Maeno,25,† A. Maevskiy,99,† E. Magradze,54,† K. Mahboubi,48,† J. Mahlstedt,107,† C. Maiani,136,† C. Maidantchik,24a,†
A. A. Maier,101,† T. Maier,100,† A. Maio,126a,126b,126d,† S. Majewski,116,† Y. Makida,66,† N. Makovec,117,† B. Malaescu,80,†
Pa. Malecki,39,† V. P. Maleev,123,† F. Malek,55,† U. Mallik,63,† D. Malon,6,† C. Malone,143,† S. Maltezos,10,†
V. M. Malyshev,109,† S. Malyukov,30,† J. Mamuzic,42,† G. Mancini,47,† B. Mandelli,30,† L. Mandelli,91a,† I. Mandić,75,†
R. Mandrysch,63,† J. Maneira,126a,126b,† A. Manfredini,101,† L. Manhaes de Andrade Filho,24b,† J. Manjarres Ramos,159b,†
A. Mann,100,† P. M. Manning,137,† A. Manousakis-Katsikakis,9,† B. Mansoulie,136,† R. Mantifel,87,† M. Mantoani,54,†
L. Mapelli,30,† L. March,145c,† G. Marchiori,80,† M. Marcisovsky,127,† C. P. Marino,169,† M. Marjanovic,13,† F. Marroquim,24a,†
S. P. Marsden,84,† Z. Marshall,15,† L. F. Marti,17,† S. Marti-Garcia,167,† B. Martin,90,† T. A. Martin,170,† V. J. Martin,46,†
B. Martin dit Latour,14,† M. Martinez,12,p,† S. Martin-Haugh,131,† V. S. Martoiu,26a,† A. C. Martyniuk,78,† M. Marx,138,†
F. Marzano,132a,† A. Marzin,30,† L. Masetti,83,† T. Mashimo,155,† R. Mashinistov,96,† J. Masik,84,† A. L. Maslennikov,109,d,†
I. Massa,20a,20b,† L. Massa,20a,20b,† N. Massol,5,† P. Mastrandrea,148,† A. Mastroberardino,37a,37b,† T. Masubuchi,155,†
P. Mättig,175,† J. Mattmann,83,† J. Maurer,26a,† S. J. Maxfield,74,† D. A. Maximov,109,d,† R. Mazini,151,† S. M. Mazza,91a,91b,†
L. Mazzaferro,133a,133b,† G. Mc Goldrick,158,† S. P. Mc Kee,89,† A. McCarn,89,† R. L. McCarthy,148,† T. G. McCarthy,29,†
N. A. McCubbin,131,† K. W. McFarlane,56,a,† J. A. Mcfayden,78,† G. Mchedlidze,54,† S. J. McMahon,131,†
R. A. McPherson,169,l,† M. Medinnis,42,† S. Meehan,145a,† S. Mehlhase,100,† A. Mehta,74,† K. Meier,58a,† C. Meineck,100,†
B. Meirose,41,† B. R. Mellado Garcia,145c,† F. Meloni,17,† A. Mengarelli,20a,20b,† S. Menke,101,† E. Meoni,161,†
K. M. Mercurio,57,† S. Mergelmeyer,21,† P. Mermod,49,† L. Merola,104a,104b,† C. Meroni,91a,† F. S. Merritt,31,†
A. Messina,132a,132b,† J. Metcalfe,25,† A. S. Mete,163,† C. Meyer,83,† C. Meyer,122,† J-P. Meyer,136,† J. Meyer,107,†
R. P. Middleton,131,† S. Miglioranzi,164a,164c,† L. Mijović,21,† G. Mikenberg,172,† M. Mikestikova,127,† M. Mikuž,75,†
M. Milesi,88,† A. Milic,30,† D. W. Miller,31,† C. Mills,46,† A. Milov,172,† D. A. Milstead,146a,146b,† A. A. Minaenko,130,†
Y. Minami,155,† I. A. Minashvili,65,† A. I. Mincer,110,† B. Mindur,38a,† M. Mineev,65,† Y. Ming,173,† L. M. Mir,12,†
T. Mitani,171,† J. Mitrevski,100,† V. A. Mitsou,167,† A. Miucci,49,† P. S. Miyagawa,139,† J. U. Mjörnmark,81,† T. Moa,146a,146b,†
K. Mochizuki,85,† S. Mohapatra,35,† W. Mohr,48,† S. Molander,146a,146b,† R. Moles-Valls,167,† K. Mönig,42,† C. Monini,55,†
J. Monk,36,† E. Monnier,85,† J. Montejo Berlingen,12,† F. Monticelli,71,† S. Monzani,132a,132b,† R. W. Moore,3,†
N. Morange,117,† D. Moreno,162,† M. Moreno Llácer,54,† P. Morettini,50a,† M. Morgenstern,44,† M. Morii,57,†
M. Morinaga,155,† V. Morisbak,119,† S. Moritz,83,† A. K. Morley,147,† G. Mornacchi,30,† J. D. Morris,76,† S. S. Mortensen,36,†
A. Morton,53,† L. Morvaj,103,† M. Mosidze,51b,† J. Moss,111,† K. Motohashi,157,† R. Mount,143,† E. Mountricha,25,†
S. V. Mouraviev,96,a,† E. J. W. Moyse,86,† S. Muanza,85,† R. D. Mudd,18,† F. Mueller,101,† J. Mueller,125,† K. Mueller,21,†
R. S. P. Mueller,100,† T. Mueller,28,† D. Muenstermann,49,† P. Mullen,53,† Y. Munwes,153,† J. A. Murillo Quijada,18,†
W. J. Murray,170,131,† H. Musheghyan,54,† E. Musto,152,† A. G. Myagkov,130,bb,† M. Myska,128,† O. Nackenhorst,54,†
J. Nadal,54,† K. Nagai,120,† R. Nagai,157,† Y. Nagai,85,† K. Nagano,66,† A. Nagarkar,111,† Y. Nagasaka,59,† K. Nagata,160,†
M. Nagel,101,† E. Nagy,85,† A. M. Nairz,30,† Y. Nakahama,30,† K. Nakamura,66,† T. Nakamura,155,† I. Nakano,112,†
H. Namasivayam,41,† R. F. Naranjo Garcia,42,† R. Narayan,31,† T. Naumann,42,† G. Navarro,162,† R. Nayyar,7,† H. A. Neal,89,†
P.Yu. Nechaeva,96,† T. J. Neep,84,† P. D. Nef,143,† A. Negri,121a,121b,† M. Negrini,20a,† S. Nektarijevic,106,† C. Nellist,117,†
A. Nelson,163,† S. Nemecek,127,† P. Nemethy,110,† A. A. Nepomuceno,24a,† M. Nessi,30,cc,† M. S. Neubauer,165,†
M. Neumann,175,† R. M. Neves,110,† P. Nevski,25,† P. R. Newman,18,† D. H. Nguyen,6,† R. B. Nickerson,120,†
R. Nicolaidou,136,† B. Nicquevert,30,† J. Nielsen,137,† N. Nikiforou,35,† A. Nikiforov,16,† V. Nikolaenko,130,bb,†
I. Nikolic-Audit,80,† K. Nikolopoulos,18,† J. K. Nilsen,119,† P. Nilsson,25,† Y. Ninomiya,155,† A. Nisati,132a,† R. Nisius,101,†
T. Nobe,157,† M. Nomachi,118,† I. Nomidis,29,† T. Nooney,76,† S. Norberg,113,† M. Nordberg,30,† O. Novgorodova,44,†
S. Nowak,101,† M. Nozaki,66,† L. Nozka,115,† K. Ntekas,10,† G. Nunes Hanninger,88,† T. Nunnemann,100,† E. Nurse,78,†
F. Nuti,88,† B. J. O’Brien,46,† F. O’grady,7,† D. C. O’Neil,142,† V. O’Shea,53,† F. G. Oakham,29,e,† H. Oberlack,101,†
T. Obermann,21,† J. Ocariz,80,† A. Ochi,67,† I. Ochoa,78,† J. P. Ochoa-Ricoux,32a,† S. Oda,70,† S. Odaka,66,† H. Ogren,61,†
A. Oh,84,† S. H. Oh,45,† C. C. Ohm,15,† H. Ohman,166,† H. Oide,30,† W. Okamura,118,† H. Okawa,160,† Y. Okumura,31,†
T. Okuyama,155,† A. Olariu,26a,† S. A. Olivares Pino,46,† D. Oliveira Damazio,25,† E. Oliver Garcia,167,† A. Olszewski,39,†
J. Olszowska,39,† A. Onofre,126a,126e,† P. U. E. Onyisi,31,r,† C. J. Oram,159a,† M. J. Oreglia,31,† Y. Oren,153,†
D. Orestano,134a,134b,† N. Orlando,154,† C. Oropeza Barrera,53,† R. S. Orr,158,† B. Osculati,50a,50b,† R. Ospanov,84,†
191803-14
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
G. Otero y Garzon,27,† H. Otono,70,† M. Ouchrif,135d,† E. A. Ouellette,169,† F. Ould-Saada,119,† A. Ouraou,136,†
K. P. Oussoren,107,† Q. Ouyang,33a,† A. Ovcharova,15,† M. Owen,53,† R. E. Owen,18,† V. E. Ozcan,19a,† N. Ozturk,8,†
K. Pachal,142,† A. Pacheco Pages,12,† C. Padilla Aranda,12,† M. Pagáčová,48,† S. Pagan Griso,15,† E. Paganis,139,† C. Pahl,101,†
F. Paige,25,† P. Pais,86,† K. Pajchel,119,† G. Palacino,159b,† S. Palestini,30,† M. Palka,38b,† D. Pallin,34,† A. Palma,126a,126b,†
Y. B. Pan,173,† E. Panagiotopoulou,10,† C. E. Pandini,80,† J. G. Panduro Vazquez,77,† P. Pani,146a,146b,† S. Panitkin,25,†
D. Pantea,26a,† L. Paolozzi,49,† Th.D. Papadopoulou,10,† K. Papageorgiou,154,† A. Paramonov,6,† D. Paredes Hernandez,154,†
M. A. Parker,28,† K. A. Parker,139,† F. Parodi,50a,50b,† J. A. Parsons,35,† U. Parzefall,48,† E. Pasqualucci,132a,† S. Passaggio,50a,†
F. Pastore,134a,134b,a,† Fr. Pastore,77,† G. Pásztor,29,† S. Pataraia,175,† N. D. Patel,150,† J. R. Pater,84,† T. Pauly,30,† J. Pearce,169,†
B. Pearson,113,† L. E. Pedersen,36,† M. Pedersen,119,† S. Pedraza Lopez,167,† R. Pedro,126a,126b,† S. V. Peleganchuk,109,†
D. Pelikan,166,† H. Peng,33b,† B. Penning,31,† J. Penwell,61,† D. V. Perepelitsa,25,† E. Perez Codina,159a,†
M. T. Pérez García-Estañ,167,† L. Perini,91a,91b,† H. Pernegger,30,† S. Perrella,104a,104b,† R. Peschke,42,† V. D. Peshekhonov,65,†
K. Peters,30,† R. F. Y. Peters,84,† B. A. Petersen,30,† T. C. Petersen,36,† E. Petit,42,† A. Petridis,146a,146b,† C. Petridou,154,†
E. Petrolo,132a,† F. Petrucci,134a,134b,† N. E. Pettersson,157,† R. Pezoa,32b,† P. W. Phillips,131,† G. Piacquadio,143,† E. Pianori,170,†
A. Picazio,49,† E. Piccaro,76,† M. Piccinini,20a,20b,† M. A. Pickering,120,† R. Piegaia,27,† D. T. Pignotti,111,† J. E. Pilcher,31,†
A. D. Pilkington,84,† J. Pina,126a,126b,126d,† M. Pinamonti,164a,164c,dd,† J. L. Pinfold,3,† A. Pingel,36,† B. Pinto,126a,† S. Pires,80,†
M. Pitt,172,† C. Pizio,91a,91b,† L. Plazak,144a,† M.-A. Pleier,25,† V. Pleskot,129,† E. Plotnikova,65,† P. Plucinski,146a,146b,†
D. Pluth,64,† R. Poettgen,83,† L. Poggioli,117,† D. Pohl,21,† G. Polesello,121a,† A. Policicchio,37a,37b,† R. Polifka,158,†
A. Polini,20a,† C. S. Pollard,53,† V. Polychronakos,25,† K. Pommès,30,† L. Pontecorvo,132a,† B. G. Pope,90,†
G. A. Popeneciu,26b,† D. S. Popovic,13,† A. Poppleton,30,† S. Pospisil,128,† K. Potamianos,15,† I. N. Potrap,65,† C. J. Potter,149,†
C. T. Potter,116,† G. Poulard,30,† J. Poveda,30,† V. Pozdnyakov,65,† P. Pralavorio,85,† A. Pranko,15,† S. Prasad,30,† S. Prell,64,†
D. Price,84,† L. E. Price,6,† M. Primavera,73a,† S. Prince,87,† M. Proissl,46,† K. Prokofiev,60c,† F. Prokoshin,32b,†
E. Protopapadaki,136,† S. Protopopescu,25,† J. Proudfoot,6,† M. Przybycien,38a,† E. Ptacek,116,† D. Puddu,134a,134b,†
E. Pueschel,86,† D. Puldon,148,† M. Purohit,25,ee,† P. Puzo,117,† J. Qian,89,† G. Qin,53,† Y. Qin,84,† A. Quadt,54,†
D. R. Quarrie,15,† W. B. Quayle,164a,164b,† M. Queitsch-Maitland,84,† D. Quilty,53,† S. Raddum,119,† V. Radeka,25,†
V. Radescu,42,† S. K. Radhakrishnan,148,† P. Radloff,116,† P. Rados,88,† F. Ragusa,91a,91b,† G. Rahal,178,† S. Rajagopalan,25,†
M. Rammensee,30,† C. Rangel-Smith,166,† F. Rauscher,100,† S. Rave,83,† T. Ravenscroft,53,† M. Raymond,30,† A. L. Read,119,†
N. P. Readioff,74,† D. M. Rebuzzi,121a,121b,† A. Redelbach,174,† G. Redlinger,25,† R. Reece,137,† K. Reeves,41,† L. Rehnisch,16,†
H. Reisin,27,† M. Relich,163,† C. Rembser,30,† H. Ren,33a,† A. Renaud,117,† M. Rescigno,132a,† S. Resconi,91a,†
O. L. Rezanova,109,d,† P. Reznicek,129,† R. Rezvani,95,† R. Richter,101,† S. Richter,78,† E. Richter-Was,38b,† O. Ricken,21,†
M. Ridel,80,† P. Rieck,16,† C. J. Riegel,175,† J. Rieger,54,† M. Rijssenbeek,148,† A. Rimoldi,121a,121b,† L. Rinaldi,20a,†
B. Ristić,49,† E. Ritsch,62,† I. Riu,12,† F. Rizatdinova,114,† E. Rizvi,76,† S. H. Robertson,87,l,† A. Robichaud-Veronneau,87,†
D. Robinson,28,† J. E. M. Robinson,84,† A. Robson,53,† C. Roda,124a,124b,† S. Roe,30,† O. Røhne,119,† S. Rolli,161,†
A. Romaniouk,98,† M. Romano,20a,20b,† S. M. Romano Saez,34,† E. Romero Adam,167,† N. Rompotis,138,† M. Ronzani,48,†
L. Roos,80,† E. Ros,167,† S. Rosati,132a,† K. Rosbach,48,† P. Rose,137,† P. L. Rosendahl,14,† O. Rosenthal,141,†
V. Rossetti,146a,146b,† E. Rossi,104a,104b,† L. P. Rossi,50a,† R. Rosten,138,† M. Rotaru,26a,† I. Roth,172,† J. Rothberg,138,†
D. Rousseau,117,† C. R. Royon,136,† A. Rozanov,85,† Y. Rozen,152,† X. Ruan,145c,† F. Rubbo,143,† I. Rubinskiy,42,† V. I. Rud,99,†
C. Rudolph,44,† M. S. Rudolph,158,† F. Rühr,48,† A. Ruiz-Martinez,30,† Z. Rurikova,48,† N. A. Rusakovich,65,† A. Ruschke,100,†
H. L. Russell,138,† J. P. Rutherfoord,7,† N. Ruthmann,48,† Y. F. Ryabov,123,† M. Rybar,129,† G. Rybkin,117,† N. C. Ryder,120,†
A. F. Saavedra,150,† G. Sabato,107,† S. Sacerdoti,27,† A. Saddique,3,† H. F-W. Sadrozinski,137,† R. Sadykov,65,†
F. Safai Tehrani,132a,† M. Saimpert,136,† H. Sakamoto,155,† Y. Sakurai,171,† G. Salamanna,134a,134b,† A. Salamon,133a,†
M. Saleem,113,† D. Salek,107,† P. H. Sales De Bruin,138,† D. Salihagic,101,† A. Salnikov,143,† J. Salt,167,† D. Salvatore,37a,37b,†
F. Salvatore,149,† A. Salvucci,106,† A. Salzburger,30,† D. Sampsonidis,154,† A. Sanchez,104a,104b,† J. Sánchez,167,†
V. Sanchez Martinez,167,† H. Sandaker,14,† R. L. Sandbach,76,† H. G. Sander,83,† M. P. Sanders,100,† M. Sandhoff,175,†
C. Sandoval,162,† R. Sandstroem,101,† D. P. C. Sankey,131,† M. Sannino,50a,50b,† A. Sansoni,47,† C. Santoni,34,†
R. Santonico,133a,133b,† H. Santos,126a,† I. Santoyo Castillo,149,† K. Sapp,125,† A. Sapronov,65,† J. G. Saraiva,126a,126d,†
B. Sarrazin,21,† O. Sasaki,66,† Y. Sasaki,155,† K. Sato,160,† G. Sauvage,5,a,† E. Sauvan,5,† G. Savage,77,† P. Savard,158,e,†
C. Sawyer,120,† L. Sawyer,79,o,† J. Saxon,31,† C. Sbarra,20a,† A. Sbrizzi,20a,20b,† T. Scanlon,78,† D. A. Scannicchio,163,†
M. Scarcella,150,† V. Scarfone,37a,37b,† J. Schaarschmidt,172,† P. Schacht,101,† D. Schaefer,30,† R. Schaefer,42,† J. Schaeffer,83,†
S. Schaepe,21,† S. Schaetzel,58b,† U. Schäfer,83,† A. C. Schaffer,117,† D. Schaile,100,† R. D. Schamberger,148,† V. Scharf,58a,†
191803-15
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
V. A. Schegelsky,123,† D. Scheirich,129,† M. Schernau,163,† C. Schiavi,50a,50b,† C. Schillo,48,† M. Schioppa,37a,37b,†
S. Schlenker,30,† E. Schmidt,48,† K. Schmieden,30,† C. Schmitt,83,† S. Schmitt,58b,† S. Schmitt,42,† B. Schneider,159a,†
Y. J. Schnellbach,74,† U. Schnoor,44,† L. Schoeffel,136,† A. Schoening,58b,† B. D. Schoenrock,90,† E. Schopf,21,†
A. L. S. Schorlemmer,54,† M. Schott,83,† D. Schouten,159a,† J. Schovancova,8,† S. Schramm,158,† M. Schreyer,174,†
C. Schroeder,83,† N. Schuh,83,† M. J. Schultens,21,† H.-C. Schultz-Coulon,58a,† H. Schulz,16,† M. Schumacher,48,†
B. A. Schumm,137,† Ph. Schune,136,† C. Schwanenberger,84,† A. Schwartzman,143,† T. A. Schwarz,89,† Ph. Schwegler,101,†
Ph. Schwemling,136,† R. Schwienhorst,90,† J. Schwindling,136,† T. Schwindt,21,† M. Schwoerer,5,† F. G. Sciacca,17,†
E. Scifo,117,† G. Sciolla,23,† F. Scuri,124a,124b,† F. Scutti,21,† J. Searcy,89,† G. Sedov,42,† E. Sedykh,123,† P. Seema,21,†
S. C. Seidel,105,† A. Seiden,137,† F. Seifert,128,† J. M. Seixas,24a,† G. Sekhniaidze,104a,† K. Sekhon,89,† S. J. Sekula,40,†
K. E. Selbach,46,† D. M. Seliverstov,123,a,† N. Semprini-Cesari,20a,20b,† C. Serfon,30,† L. Serin,117,† L. Serkin,164a,164b,†
T. Serre,85,† M. Sessa,134a,134b,† R. Seuster,159a,† H. Severini,113,† T. Sfiligoj,75,† F. Sforza,101,† A. Sfyrla,30,† E. Shabalina,54,†
M. Shamim,116,† L. Y. Shan,33a,† R. Shang,165,† J. T. Shank,22,† M. Shapiro,15,† P. B. Shatalov,97,† K. Shaw,164a,164b,†
S. M. Shaw,84,† A. Shcherbakova,146a,146b,† C. Y. Shehu,149,† P. Sherwood,78,† L. Shi,151,ff,† S. Shimizu,67,† C. O. Shimmin,163,†
M. Shimojima,102,† M. Shiyakova,65,† A. Shmeleva,96,† D. Shoaleh Saadi,95,† M. J. Shochet,31,† S. Shojaii,91a,91b,†
S. Shrestha,111,† E. Shulga,98,† M. A. Shupe,7,† S. Shushkevich,42,† P. Sicho,127,† O. Sidiropoulou,174,† D. Sidorov,114,†
A. Sidoti,20a,20b,† F. Siegert,44,† Dj. Sijacki,13,† J. Silva,126a,126d,† Y. Silver,153,† S. B. Silverstein,146a,† V. Simak,128,†
O. Simard,5,† Lj. Simic,13,† S. Simion,117,† E. Simioni,83,† B. Simmons,78,† D. Simon,34,† R. Simoniello,91a,91b,† P. Sinervo,158,†
N. B. Sinev,116,† G. Siragusa,174,† A. N. Sisakyan,65,a,† S.Yu. Sivoklokov,99,† J. Sjölin,146a,146b,† T. B. Sjursen,14,†
M. B. Skinner,72,† H. P. Skottowe,57,† P. Skubic,113,† M. Slater,18,† T. Slavicek,128,† M. Slawinska,107,† K. Sliwa,161,†
V. Smakhtin,172,† B. H. Smart,46,† L. Smestad,14,† S.Yu. Smirnov,98,† Y. Smirnov,98,† L. N. Smirnova,99,gg,† O. Smirnova,81,†
M. N. K. Smith,35,† R. W. Smith,35,† M. Smizanska,72,† K. Smolek,128,† A. A. Snesarev,96,† G. Snidero,76,† S. Snyder,25,†
R. Sobie,169,l,† F. Socher,44,† A. Soffer,153,† D. A. Soh,151,ff,† C. A. Solans,30,† M. Solar,128,† J. Solc,128,† E.Yu. Soldatov,98,†
U. Soldevila,167,† A. A. Solodkov,130,† A. Soloshenko,65,† O. V. Solovyanov,130,† V. Solovyev,123,† P. Sommer,48,†
H. Y. Song,33b,† N. Soni,1,† A. Sood,15,† A. Sopczak,128,† B. Sopko,128,† V. Sopko,128,† V. Sorin,12,† D. Sosa,58b,†
M. Sosebee,8,† C. L. Sotiropoulou,124a,124b,† R. Soualah,164a,164c,† P. Soueid,95,† A. M. Soukharev,109,d,† D. South,42,†
B. C. Sowden,77,† S. Spagnolo,73a,73b,† M. Spalla,124a,124b,† F. Spanò,77,† W. R. Spearman,57,† F. Spettel,101,† R. Spighi,20a,†
G. Spigo,30,† L. A. Spiller,88,† M. Spousta,129,† T. Spreitzer,158,† R. D. St. Denis,53,a,† S. Staerz,44,† J. Stahlman,122,†
R. Stamen,58a,† S. Stamm,16,† E. Stanecka,39,† C. Stanescu,134a,† M. Stanescu-Bellu,42,† M. M. Stanitzki,42,† S. Stapnes,119,†
E. A. Starchenko,130,† J. Stark,55,† P. Staroba,127,† P. Starovoitov,42,† R. Staszewski,39,† P. Stavina,144a,a,† P. Steinberg,25,†
B. Stelzer,142,† H. J. Stelzer,30,† O. Stelzer-Chilton,159a,† H. Stenzel,52,† S. Stern,101,† G. A. Stewart,53,† J. A. Stillings,21,†
M. C. Stockton,87,† M. Stoebe,87,† G. Stoicea,26a,† P. Stolte,54,† S. Stonjek,101,† A. R. Stradling,8,† A. Straessner,44,†
M. E. Stramaglia,17,† J. Strandberg,147,† S. Strandberg,146a,146b,† A. Strandlie,119,† E. Strauss,143,† M. Strauss,113,†
P. Strizenec,144b,† R. Ströhmer,174,† D. M. Strom,116,† R. Stroynowski,40,† A. Strubig,106,† S. A. Stucci,17,† B. Stugu,14,†
N. A. Styles,42,† D. Su,143,† J. Su,125,† R. Subramaniam,79,† A. Succurro,12,† Y. Sugaya,118,† C. Suhr,108,† M. Suk,128,†
V. V. Sulin,96,† S. Sultansoy,4c,† T. Sumida,68,† S. Sun,57,† X. Sun,33a,† J. E. Sundermann,48,† K. Suruliz,149,†
G. Susinno,37a,37b,† M. R. Sutton,149,† S. Suzuki,66,† Y. Suzuki,66,† M. Svatos,127,† S. Swedish,168,† M. Swiatlowski,143,†
I. Sykora,144a,† T. Sykora,129,† D. Ta,90,† C. Taccini,134a,134b,† K. Tackmann,42,† J. Taenzer,158,† A. Taffard,163,† R. Tafirout,159a,†
N. Taiblum,153,† H. Takai,25,† R. Takashima,69,† H. Takeda,67,† T. Takeshita,140,† Y. Takubo,66,† M. Talby,85,†
A. A. Talyshev,109,d,† J. Y. C. Tam,174,† K. G. Tan,88,† J. Tanaka,155,† R. Tanaka,117,† S. Tanaka,66,† B. B. Tannenwald,111,†
N. Tannoury,21,† S. Tapprogge,83,† S. Tarem,152,† F. Tarrade,29,† G. F. Tartarelli,91a,† P. Tas,129,† M. Tasevsky,127,†
T. Tashiro,68,† E. Tassi,37a,37b,† A. Tavares Delgado,126a,126b,† Y. Tayalati,135d,† F. E. Taylor,94,† G. N. Taylor,88,† W. Taylor,159b,†
F. A. Teischinger,30,† M. Teixeira Dias Castanheira,76,† P. Teixeira-Dias,77,† K. K. Temming,48,† H. Ten Kate,30,†
P. K. Teng,151,† J. J. Teoh,118,† F. Tepel,175,† S. Terada,66,† K. Terashi,155,† J. Terron,82,† S. Terzo,101,† M. Testa,47,†
R. J. Teuscher,158,l,† J. Therhaag,21,† T. Theveneaux-Pelzer,34,† J. P. Thomas,18,† J. Thomas-Wilsker,77,† E. N. Thompson,35,†
P. D. Thompson,18,† R. J. Thompson,84,† A. S. Thompson,53,† L. A. Thomsen,36,† E. Thomson,122,† M. Thomson,28,†
R. P. Thun,89,a,† M. J. Tibbetts,15,† R. E. Ticse Torres,85,† V. O. Tikhomirov,96,hh,† Yu.A. Tikhonov,109,d,† S. Timoshenko,98,†
E. Tiouchichine,85,† P. Tipton,176,† S. Tisserant,85,† T. Todorov,5,a,† S. Todorova-Nova,129,† J. Tojo,70,† S. Tokár,144a,†
K. Tokushuku,66,† K. Tollefson,90,† E. Tolley,57,† L. Tomlinson,84,† M. Tomoto,103,† L. Tompkins,143,ii,† K. Toms,105,†
E. Torrence,116,† H. Torres,142,† E. Torró Pastor,167,† J. Toth,85,jj,† F. Touchard,85,† D. R. Tovey,139,† T. Trefzger,174,†
191803-16
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
L. Tremblet,30,† A. Tricoli,30,† I. M. Trigger,159a,† S. Trincaz-Duvoid,80,† M. F. Tripiana,12,† W. Trischuk,158,† B. Trocmé,55,†
C. Troncon,91a,† M. Trottier-McDonald,15,† M. Trovatelli,134a,134b,† P. True,90,† L. Truong,164a,164c,† M. Trzebinski,39,†
A. Trzupek,39,† C. Tsarouchas,30,† J.C-L. Tseng,120,† P. V. Tsiareshka,92,† D. Tsionou,154,† G. Tsipolitis,10,† N. Tsirintanis,9,†
S. Tsiskaridze,12,† V. Tsiskaridze,48,† E. G. Tskhadadze,51a,† I. I. Tsukerman,97,† V. Tsulaia,15,† S. Tsuno,66,†
D. Tsybychev,148,† A. Tudorache,26a,† V. Tudorache,26a,† A. N. Tuna,122,† S. A. Tupputi,20a,20b,† S. Turchikhin,99,gg,†
D. Turecek,128,† R. Turra,91a,91b,† A. J. Turvey,40,† P. M. Tuts,35,† A. Tykhonov,49,† M. Tylmad,146a,146b,† M. Tyndel,131,†
I. Ueda,155,† R. Ueno,29,† M. Ughetto,146a,146b,† M. Ugland,14,† M. Uhlenbrock,21,† F. Ukegawa,160,† G. Unal,30,†
A. Undrus,25,† G. Unel,163,† F. C. Ungaro,48,† Y. Unno,66,† C. Unverdorben,100,† J. Urban,144b,† P. Urquijo,88,† P. Urrejola,83,†
G. Usai,8,† A. Usanova,62,† L. Vacavant,85,† V. Vacek,128,† B. Vachon,87,† C. Valderanis,83,† N. Valencic,107,†
S. Valentinetti,20a,20b,† A. Valero,167,† L. Valery,12,† S. Valkar,129,† E. Valladolid Gallego,167,† S. Vallecorsa,49,†
J. A. Valls Ferrer,167,† W. Van Den Wollenberg,107,† P. C. Van Der Deijl,107,† R. van der Geer,107,† H. van der Graaf,107,†
R. Van Der Leeuw,107,† N. van Eldik,152,† P. van Gemmeren,6,† J. Van Nieuwkoop,142,† I. van Vulpen,107,†
M. C. van Woerden,30,† M. Vanadia,132a,132b,† W. Vandelli,30,† R. Vanguri,122,† A. Vaniachine,6,† F. Vannucci,80,†
G. Vardanyan,177,† R. Vari,132a,† E. W. Varnes,7,† T. Varol,40,† D. Varouchas,80,† A. Vartapetian,8,† K. E. Varvell,150,†
F. Vazeille,34,† T. Vazquez Schroeder,87,† J. Veatch,7,† L. M. Veloce,158,† F. Veloso,126a,126c,† T. Velz,21,† S. Veneziano,132a,†
A. Ventura,73a,73b,† D. Ventura,86,† M. Venturi,169,† N. Venturi,158,† A. Venturini,23,† V. Vercesi,121a,† M. Verducci,132a,132b,†
W. Verkerke,107,† J. C. Vermeulen,107,† A. Vest,44,† M. C. Vetterli,142,e,† O. Viazlo,81,† I. Vichou,165,† T. Vickey,139,†
O. E. Vickey Boeriu,139,† G. H. A. Viehhauser,120,† S. Viel,15,† R. Vigne,30,† M. Villa,20a,20b,† M. Villaplana Perez,91a,91b,†
E. Vilucchi,47,† M. G. Vincter,29,† V. B. Vinogradov,65,† I. Vivarelli,149,† F. Vives Vaque,3,† S. Vlachos,10,† D. Vladoiu,100,†
M. Vlasak,128,† M. Vogel,32a,† P. Vokac,128,† G. Volpi,124a,124b,† M. Volpi,88,† H. von der Schmitt,101,† H. von Radziewski,48,†
E. von Toerne,21,† V. Vorobel,129,† K. Vorobev,98,† M. Vos,167,† R. Voss,30,† J. H. Vossebeld,74,† N. Vranjes,13,†
M. Vranjes Milosavljevic,13,† V. Vrba,127,† M. Vreeswijk,107,† R. Vuillermet,30,† I. Vukotic,31,† Z. Vykydal,128,† P. Wagner,21,†
W. Wagner,175,† H. Wahlberg,71,† S. Wahrmund,44,† J. Wakabayashi,103,† J. Walder,72,† R. Walker,100,† W. Walkowiak,141,†
C. Wang,33c,† F. Wang,173,† H. Wang,15,† H. Wang,40,† J. Wang,42,† J. Wang,33a,† K. Wang,87,† R. Wang,6,† S. M. Wang,151,†
T. Wang,21,† X. Wang,176,† C. Wanotayaroj,116,† A. Warburton,87,† C. P. Ward,28,† D. R. Wardrope,78,† M. Warsinsky,48,†
A. Washbrook,46,† C. Wasicki,42,† P. M. Watkins,18,† A. T. Watson,18,† I. J. Watson,150,† M. F. Watson,18,† G. Watts,138,†
S. Watts,84,† B. M. Waugh,78,† S. Webb,84,† M. S. Weber,17,† S. W. Weber,174,† J. S. Webster,31,† A. R. Weidberg,120,†
B. Weinert,61,† J. Weingarten,54,† C. Weiser,48,† H. Weits,107,† P. S. Wells,30,† T. Wenaus,25,† T. Wengler,30,† S. Wenig,30,†
N. Wermes,21,† M. Werner,48,† P. Werner,30,† M. Wessels,58a,† J. Wetter,161,† K. Whalen,29,† A. M. Wharton,72,† A. White,8,†
M. J. White,1,† R. White,32b,† S. White,124a,124b,† D. Whiteson,163,† F. J. Wickens,131,† W. Wiedenmann,173,† M. Wielers,131,†
P. Wienemann,21,† C. Wiglesworth,36,† L. A. M. Wiik-Fuchs,21,† A. Wildauer,101,† H. G. Wilkens,30,† H. H. Williams,122,†
S. Williams,107,† C. Willis,90,† S. Willocq,86,† A. Wilson,89,† J. A. Wilson,18,† I. Wingerter-Seez,5,† F. Winklmeier,116,†
B. T. Winter,21,† M. Wittgen,143,† J. Wittkowski,100,† S. J. Wollstadt,83,† M. W. Wolter,39,† H. Wolters,126a,126c,†
B. K. Wosiek,39,† J. Wotschack,30,† M. J. Woudstra,84,† K. W. Wozniak,39,† M. Wu,55,† M. Wu,31,† S. L. Wu,173,† X. Wu,49,†
Y. Wu,89,† T. R. Wyatt,84,† B. M. Wynne,46,† S. Xella,36,† D. Xu,33a,† L. Xu,33b,kk,† B. Yabsley,150,† S. Yacoob,145b,ll,†
R. Yakabe,67,† M. Yamada,66,† Y. Yamaguchi,118,† A. Yamamoto,66,† S. Yamamoto,155,† T. Yamanaka,155,† K. Yamauchi,103,†
Y. Yamazaki,67,† Z. Yan,22,† H. Yang,33e,† H. Yang,173,† Y. Yang,151,† L. Yao,33a,† W-M. Yao,15,† Y. Yasu,66,† E. Yatsenko,5,†
K. H. Yau Wong,21,† J. Ye,40,† S. Ye,25,† I. Yeletskikh,65,† A. L. Yen,57,† E. Yildirim,42,† K. Yorita,171,† R. Yoshida,6,†
K. Yoshihara,122,† C. Young,143,† C. J. S. Young,30,† S. Youssef,22,† D. R. Yu,15,† J. Yu,8,† J. M. Yu,89,† J. Yu,114,† L. Yuan,67,†
A. Yurkewicz,108,† I. Yusuff,28,mm,† B. Zabinski,39,† R. Zaidan,63,† A. M. Zaitsev,130,bb,† J. Zalieckas,14,† A. Zaman,148,†
S. Zambito,57,† L. Zanello,132a,132b,† D. Zanzi,88,† C. Zeitnitz,175,† M. Zeman,128,† A. Zemla,38a,† K. Zengel,23,† O. Zenin,130,†
T. Ženiš,144a,† D. Zerwas,117,† D. Zhang,89,† F. Zhang,173,† J. Zhang,6,† L. Zhang,48,† R. Zhang,33b,† X. Zhang,33d,†
Z. Zhang,117,† X. Zhao,40,† Y. Zhao,33d,117,† Z. Zhao,33b,† A. Zhemchugov,65,† J. Zhong,120,† B. Zhou,89,† C. Zhou,45,†
L. Zhou,35,† L. Zhou,40,† N. Zhou,163,† C. G. Zhu,33d,† H. Zhu,33a,† J. Zhu,89,† Y. Zhu,33b,† X. Zhuang,33a,† K. Zhukov,96,†
A. Zibell,174,† D. Zieminska,61,† N. I. Zimine,65,† C. Zimmermann,83,† S. Zimmermann,48,† Z. Zinonos,54,† M. Zinser,83,†
M. Ziolkowski,141,† L. Živković,13,† G. Zobernig,173,† A. Zoccoli,20a,20b,† M. zur Nedden,16,† G. Zurzolo,104a,104b,†
L. Zwalinski,30,† V. Khachatryan,179,‡ A. M. Sirunyan,179,‡ A. Tumasyan,179,‡ W. Adam,180,‡ E. Asilar,180,‡ T. Bergauer,180,‡
J. Brandstetter,180,‡ E. Brondolin,180,‡ M. Dragicevic,180,‡ J. Erö,180,‡ M. Flechl,180,‡ M. Friedl,180,‡ R. Frühwirth,180,nn,‡
V. M. Ghete,180,‡ C. Hartl,180,‡ N. Hörmann,180,‡ J. Hrubec,180,‡ M. Jeitler,180,nn,‡ V. Knünz,180,‡ A. König,180,‡
191803-17
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
M. Krammer,180,nn,‡ I. Krätschmer,180,‡ D. Liko,180,‡ T. Matsushita,180,‡ I. Mikulec,180,‡ D. Rabady,180,oo,‡ B. Rahbaran,180,‡
H. Rohringer,180,‡ J. Schieck,180,nn,‡ R. Schöfbeck,180,‡ J. Strauss,180,‡ W. Treberer-Treberspurg,180,‡ W. Waltenberger,180,‡
C.-E. Wulz,180,nn,‡ V. Mossolov,181,‡ N. Shumeiko,181,‡ J. Suarez Gonzalez,181,‡ S. Alderweireldt,182,‡ T. Cornelis,182,‡
E. A. De Wolf,182,‡ X. Janssen,182,‡ A. Knutsson,182,‡ J. Lauwers,182,‡ S. Luyckx,182,‡ S. Ochesanu,182,‡ R. Rougny,182,‡
M. Van De Klundert,182,‡ H. Van Haevermaet,182,‡ P. Van Mechelen,182,‡ N. Van Remortel,182,‡ A. Van Spilbeeck,182,‡
S. Abu Zeid,183,‡ F. Blekman,183,‡ J. D’Hondt,183,‡ N. Daci,183,‡ I. De Bruyn,183,‡ K. Deroover,183,‡ N. Heracleous,183,‡
J. Keaveney,183,‡ S. Lowette,183,‡ L. Moreels,183,‡ A. Olbrechts,183,‡ Q. Python,183,‡ D. Strom,183,‡ S. Tavernier,183,‡
W. Van Doninck,183,‡ P. Van Mulders,183,‡ G. P. Van Onsem,183,‡ I. Van Parijs,183,‡ P. Barria,184,‡ C. Caillol,184,‡
B. Clerbaux,184,‡ G. De Lentdecker,184,‡ H. Delannoy,184,‡ D. Dobur,184,‡ G. Fasanella,184,‡ L. Favart,184,‡ A. P. R. Gay,184,‡
A. Grebenyuk,184,‡ T. Lenzi,184,‡ A. Léonard,184,‡ T. Maerschalk,184,‡ A. Mohammadi,184,‡ L. Perniè,184,‡
A. Randle-conde,184,‡ T. Reis,184,‡ T. Seva,184,‡ L. Thomas,184,‡ C. Vander Velde,184,‡ P. Vanlaer,184,‡ J. Wang,184,‡
R. Yonamine,184,‡ F. Zenoni,184,‡ F. Zhang,184,pp,‡ K. Beernaert,185,‡ L. Benucci,185,‡ A. Cimmino,185,‡ S. Crucy,185,‡
A. Fagot,185,‡ G. Garcia,185,‡ M. Gul,185,‡ J. Mccartin,185,‡ A. A. Ocampo Rios,185,‡ D. Poyraz,185,‡ D. Ryckbosch,185,‡
S. Salva Diblen,185,‡ M. Sigamani,185,‡ N. Strobbe,185,‡ M. Tytgat,185,‡ W. Van Driessche,185,‡ E. Yazgan,185,‡
N. Zaganidis,185,‡ S. Basegmez,186,‡ C. Beluffi,186,qq,‡ O. Bondu,186,‡ G. Bruno,186,‡ R. Castello,186,‡ A. Caudron,186,‡
L. Ceard,186,‡ G. G. Da Silveira,186,‡ C. Delaere,186,‡ D. Favart,186,‡ L. Forthomme,186,‡ A. Giammanco,186,rr,‡ J. Hollar,186,‡
A. Jafari,186,‡ P. Jez,186,‡ M. Komm,186,‡ V. Lemaitre,186,‡ A. Mertens,186,‡ C. Nuttens,186,‡ L. Perrini,186,‡ A. Pin,186,‡
K. Piotrzkowski,186,‡ A. Popov,186,ss,‡ L. Quertenmont,186,‡ M. Selvaggi,186,‡ M. Vidal Marono,186,‡ N. Beliy,187,‡
T. Caebergs,187,‡ G. H. Hammad,187,‡ W. L. Aldá Júnior,188,‡ G. A. Alves,188,‡ L. Brito,188,‡ M. Correa Martins Junior,188,‡
T. Dos Reis Martins,188,‡ C. Hensel,188,‡ C. Mora Herrera,188,‡ A. Moraes,188,‡ M. E. Pol,188,‡ P. Rebello Teles,188,‡
E. Belchior Batista Das Chagas,189,‡ W. Carvalho,189,‡ J. Chinellato,189,tt,‡ A. Custódio,189,‡ E. M. Da Costa,189,‡
D. De Jesus Damiao,189,‡ C. De Oliveira Martins,189,‡ S. Fonseca De Souza,189,‡ L. M. Huertas Guativa,189,‡
H. Malbouisson,189,‡ D. Matos Figueiredo,189,‡ L. Mundim,189,‡ H. Nogima,189,‡ W. L. Prado Da Silva,189,‡ A. Santoro,189,‡
A. Sznajder,189,‡ E. J. Tonelli Manganote,189,tt,‡ A. Vilela Pereira,189,‡ S. Ahuja,190a,‡ C. A. Bernardes,190b,‡
A. De Souza Santos,190b,‡ S. Dogra,190a,‡ T. R. Fernandez Perez Tomei,190a,‡ E. M. Gregores,190b,‡ P. G. Mercadante,190b,‡
C. S. Moon,190a,uu,‡ S. F. Novaes,190a,‡ Sandra S. Padula,190a,‡ D. Romero Abad,190a,‡ J. C. Ruiz Vargas,190a,‡
A. Aleksandrov,191,‡ V. Genchev,191,oo,‡ R. Hadjiiska,191,‡ P. Iaydjiev,191,‡ A. Marinov,191,‡ S. Piperov,191,‡ M. Rodozov,191,‡
S. Stoykova,191,‡ G. Sultanov,191,‡ M. Vutova,191,‡ A. Dimitrov,192,‡ I. Glushkov,192,‡ L. Litov,192,‡ B. Pavlov,192,‡
P. Petkov,192,‡ M. Ahmad,193,‡ J. G. Bian,193,‡ G. M. Chen,193,‡ H. S. Chen,193,‡ M. Chen,193,‡ T. Cheng,193,‡ R. Du,193,‡
C. H. Jiang,193,‡ R. Plestina,193,vv,‡ F. Romeo,193,‡ S. M. Shaheen,193,‡ J. Tao,193,‡ C. Wang,193,‡ Z. Wang,193,‡ H. Zhang,193,‡
C. Asawatangtrakuldee,194,‡ Y. Ban,194,‡ G. Chen,194,‡ Q. Li,194,‡ S. Liu,194,‡ Y. Mao,194,‡ S. J. Qian,194,‡ D. Wang,194,‡
M. Wang,194,‡ Q. Wang,194,‡ Z. Xu,194,‡ D. Yang,194,‡ Z. Zhang,194,‡ W. Zou,194,‡ C. Avila,195,‡ A. Cabrera,195,‡
L. F. Chaparro Sierra,195,‡ C. Florez,195,‡ J. P. Gomez,195,‡ B. Gomez Moreno,195,‡ J. C. Sanabria,195,‡ N. Godinovic,196,‡
D. Lelas,196,‡ D. Polic,196,‡ I. Puljak,196,‡ Z. Antunovic,197,‡ M. Kovac,197,‡ V. Brigljevic,198,‡ K. Kadija,198,‡ J. Luetic,198,‡
L. Sudic,198,‡ A. Attikis,199,‡ G. Mavromanolakis,199,‡ J. Mousa,199,‡ C. Nicolaou,199,‡ F. Ptochos,199,‡ P. A. Razis,199,‡
H. Rykaczewski,199,‡ M. Bodlak,200,‡ M. Finger,200,ww,‡ M. Finger Jr.,200,ww,‡ A. Ali,201,xx,yy,‡ R. Aly,201,zz,‡ S. Aly,201,zz,‡
Y. Assran,201,aaa,‡ A. Ellithi Kamel,201,bbb,‡ A. Lotfy,201,ccc,‡ M. A. Mahmoud,201,ccc,‡ R. Masod,201,xx,‡ A. Radi,201,yy,xx,‡
B. Calpas,202,‡ M. Kadastik,202,‡ M. Murumaa,202,‡ M. Raidal,202,‡ A. Tiko,202,‡ C. Veelken,202,‡ P. Eerola,203,‡
J. Pekkanen,203,‡ M. Voutilainen,203,‡ J. Härkönen,204,‡ V. Karimäki,204,‡ R. Kinnunen,204,‡ T. Lampén,204,‡
K. Lassila-Perini,204,‡ S. Lehti,204,‡ T. Lindén,204,‡ P. Luukka,204,‡ T. Mäenpää,204,‡ T. Peltola,204,‡ E. Tuominen,204,‡
J. Tuominiemi,204,‡ E. Tuovinen,204,‡ L. Wendland,204,‡ J. Talvitie,205,‡ T. Tuuva,205,‡ M. Besancon,206,‡ F. Couderc,206,‡
M. Dejardin,206,‡ D. Denegri,206,‡ B. Fabbro,206,‡ J. L. Faure,206,‡ C. Favaro,206,‡ F. Ferri,206,‡ S. Ganjour,206,‡
A. Givernaud,206,‡ P. Gras,206,‡ G. Hamel de Monchenault,206,‡ P. Jarry,206,‡ E. Locci,206,‡ M. Machet,206,‡ J. Malcles,206,‡
J. Rander,206,‡ A. Rosowsky,206,‡ M. Titov,206,‡ A. Zghiche,206,‡ S. Baffioni,207,‡ F. Beaudette,207,‡ P. Busson,207,‡
L. Cadamuro,207,‡ E. Chapon,207,‡ C. Charlot,207,‡ T. Dahms,207,‡ O. Davignon,207,‡ N. Filipovic,207,‡ A. Florent,207,‡
R. Granier de Cassagnac,207,‡ S. Lisniak,207,‡ L. Mastrolorenzo,207,‡ P. Miné,207,‡ I. N. Naranjo,207,‡ M. Nguyen,207,‡
C. Ochando,207,‡ G. Ortona,207,‡ P. Paganini,207,‡ S. Regnard,207,‡ R. Salerno,207,‡ J. B. Sauvan,207,‡ Y. Sirois,207,‡
T. Strebler,207,‡ Y. Yilmaz,207,‡ A. Zabi,207,‡ J.-L. Agram,208,ddd,‡ J. Andrea,208,‡ A. Aubin,208,‡ D. Bloch,208,‡ J.-M. Brom,208,‡
M. Buttignol,208,‡ E. C. Chabert,208,‡ N. Chanon,208,‡ C. Collard,208,‡ E. Conte,208,ddd,‡ J.-C. Fontaine,208,ddd,‡ D. Gelé,208,‡
191803-18
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
U. Goerlach,208,‡ C. Goetzmann,208,‡ A.-C. Le Bihan,208,‡ J. A. Merlin,208,oo,‡ K. Skovpen,208,‡ P. Van Hove,208,‡
S. Gadrat,209,‡ S. Beauceron,210,‡ C. Bernet,210,‡ G. Boudoul,210,‡ E. Bouvier,210,‡ S. Brochet,210,‡ C. A. Carrillo Montoya,210,‡
J. Chasserat,210,‡ R. Chierici,210,‡ D. Contardo,210,‡ B. Courbon,210,‡ P. Depasse,210,‡ H. El Mamouni,210,‡ J. Fan,210,‡
J. Fay,210,‡ S. Gascon,210,‡ M. Gouzevitch,210,‡ B. Ille,210,‡ I. B. Laktineh,210,‡ M. Lethuillier,210,‡ L. Mirabito,210,‡
A. L. Pequegnot,210,‡ S. Perries,210,‡ J. D. Ruiz Alvarez,210,‡ D. Sabes,210,‡ L. Sgandurra,210,‡ V. Sordini,210,‡
M. Vander Donckt,210,‡ P. Verdier,210,‡ S. Viret,210,‡ H. Xiao,210,‡ Z. Tsamalaidze,211,ww,‡ C. Autermann,212,‡ S. Beranek,212,‡
M. Bontenackels,212,‡ M. Edelhoff,212,‡ L. Feld,212,‡ A. Heister,212,‡ M. K. Kiesel,212,‡ K. Klein,212,‡ M. Lipinski,212,‡
A. Ostapchuk,212,‡ M. Preuten,212,‡ F. Raupach,212,‡ J. Sammet,212,‡ S. Schael,212,‡ J. F. Schulte,212,‡ T. Verlage,212,‡
H. Weber,212,‡ B. Wittmer,212,‡ V. Zhukov,212,ss,‡ M. Ata,213,‡ M. Brodski,213,‡ E. Dietz-Laursonn,213,‡ D. Duchardt,213,‡
M. Endres,213,‡ M. Erdmann,213,‡ S. Erdweg,213,‡ T. Esch,213,‡ R. Fischer,213,‡ A. Güth,213,‡ T. Hebbeker,213,‡
C. Heidemann,213,‡ K. Hoepfner,213,‡ D. Klingebiel,213,‡ S. Knutzen,213,‡ P. Kreuzer,213,‡ M. Merschmeyer,213,‡ A. Meyer,213,‡
P. Millet,213,‡ M. Olschewski,213,‡ K. Padeken,213,‡ P. Papacz,213,‡ T. Pook,213,‡ M. Radziej,213,‡ H. Reithler,213,‡
M. Rieger,213,‡ F. Scheuch,213,‡ L. Sonnenschein,213,‡ D. Teyssier,213,‡ S. Thüer,213,‡ V. Cherepanov,214,‡ Y. Erdogan,214,‡
G. Flügge,214,‡ H. Geenen,214,‡ M. Geisler,214,‡ W. Haj Ahmad,214,‡ F. Hoehle,214,‡ B. Kargoll,214,‡ T. Kress,214,‡
Y. Kuessel,214,‡ A. Künsken,214,‡ J. Lingemann,214,oo,‡ A. Nehrkorn,214,‡ A. Nowack,214,‡ I. M. Nugent,214,‡ C. Pistone,214,‡
O. Pooth,214,‡ A. Stahl,214,‡ M. Aldaya Martin,215,‡ I. Asin,215,‡ N. Bartosik,215,‡ O. Behnke,215,‡ U. Behrens,215,‡
A. J. Bell,215,‡ K. Borras,215,‡ A. Burgmeier,215,‡ A. Cakir,215,‡ L. Calligaris,215,‡ A. Campbell,215,‡ S. Choudhury,215,‡
F. Costanza,215,‡ C. Diez Pardos,215,‡ G. Dolinska,215,‡ S. Dooling,215,‡ T. Dorland,215,‡ G. Eckerlin,215,‡ D. Eckstein,215,‡
T. Eichhorn,215,‡ G. Flucke,215,‡ E. Gallo,215,‡ J. Garay Garcia,215,‡ A. Geiser,215,‡ A. Gizhko,215,‡ P. Gunnellini,215,‡
J. Hauk,215,‡ M. Hempel,215,eee,‡ H. Jung,215,‡ A. Kalogeropoulos,215,‡ O. Karacheban,215,eee,‡ M. Kasemann,215,‡
P. Katsas,215,‡ J. Kieseler,215,‡ C. Kleinwort,215,‡ I. Korol,215,‡ W. Lange,215,‡ J. Leonard,215,‡ K. Lipka,215,‡ A. Lobanov,215,‡
W. Lohmann,215,eee,‡ R. Mankel,215,‡ I. Marfin,215,eee,‡ I.-A. Melzer-Pellmann,215,‡ A. B. Meyer,215,‡ G. Mittag,215,‡
J. Mnich,215,‡ A. Mussgiller,215,‡ S. Naumann-Emme,215,‡ A. Nayak,215,‡ E. Ntomari,215,‡ H. Perrey,215,‡ D. Pitzl,215,‡
R. Placakyte,215,‡ A. Raspereza,215,‡ P. M. Ribeiro Cipriano,215,‡ B. Roland,215,‡ M. Ö. Sahin,215,‡ J. Salfeld-Nebgen,215,‡
P. Saxena,215,‡ T. Schoerner-Sadenius,215,‡ M. Schröder,215,‡ C. Seitz,215,‡ S. Spannagel,215,‡ K. D. Trippkewitz,215,‡
C. Wissing,215,‡ V. Blobel,216,‡ M. Centis Vignali,216,‡ A. R. Draeger,216,‡ J. Erfle,216,‡ E. Garutti,216,‡ K. Goebel,216,‡
D. Gonzalez,216,‡ M. Görner,216,‡ J. Haller,216,‡ M. Hoffmann,216,‡ R. S. Höing,216,‡ A. Junkes,216,‡ R. Klanner,216,‡
R. Kogler,216,‡ T. Lapsien,216,‡ T. Lenz,216,‡ I. Marchesini,216,‡ D. Marconi,216,‡ D. Nowatschin,216,‡ J. Ott,216,‡
F. Pantaleo,216,oo,‡ T. Peiffer,216,‡ A. Perieanu,216,‡ N. Pietsch,216,‡ J. Poehlsen,216,‡ D. Rathjens,216,‡ C. Sander,216,‡
H. Schettler,216,‡ P. Schleper,216,‡ E. Schlieckau,216,‡ A. Schmidt,216,‡ J. Schwandt,216,‡ M. Seidel,216,‡ V. Sola,216,‡
H. Stadie,216,‡ G. Steinbrück,216,‡ H. Tholen,216,‡ D. Troendle,216,‡ E. Usai,216,‡ L. Vanelderen,216,‡ A. Vanhoefer,216,‡
M. Akbiyik,217,‡ C. Amstutz,217,‡ C. Barth,217,‡ C. Baus,217,‡ J. Berger,217,‡ C. Beskidt,217,‡ C. Böser,217,‡ E. Butz,217,‡
R. Caspart,217,‡ T. Chwalek,217,‡ F. Colombo,217,‡ W. De Boer,217,‡ A. Descroix,217,‡ A. Dierlamm,217,‡ R. Eber,217,‡
M. Feindt,217,‡ S. Fink,217,‡ M. Fischer,217,‡ F. Frensch,217,‡ B. Freund,217,‡ R. Friese,217,‡ D. Funke,217,‡ M. Giffels,217,‡
A. Gilbert,217,‡ D. Haitz,217,‡ T. Harbaum,217,‡ M. A. Harrendorf,217,‡ F. Hartmann,217,oo,‡ U. Husemann,217,‡ F. Kassel,217,oo,‡
I. Katkov,217,ss,‡ A. Kornmayer,217,oo,‡ S. Kudella,217,‡ P. Lobelle Pardo,217,‡ B. Maier,217,‡ H. Mildner,217,‡ M. U. Mozer,217,‡
T. Müller,217,‡ Th. Müller,217,‡ M. Plagge,217,‡ M. Printz,217,‡ G. Quast,217,‡ K. Rabbertz,217,‡ S. Röcker,217,‡ F. Roscher,217,‡
I. Shvetsov,217,‡ G. Sieber,217,‡ H. J. Simonis,217,‡ F. M. Stober,217,‡ R. Ulrich,217,‡ J. Wagner-Kuhr,217,‡ S. Wayand,217,‡
T. Weiler,217,‡ S. Williamson,217,‡ C. Wöhrmann,217,‡ R. Wolf,217,‡ G. Anagnostou,218,‡ G. Daskalakis,218,‡ T. Geralis,218,‡
V. A. Giakoumopoulou,218,‡ A. Kyriakis,218,‡ D. Loukas,218,‡ A. Markou,218,‡ A. Psallidas,218,‡ I. Topsis-Giotis,218,‡
A. Agapitos,219,‡ S. Kesisoglou,219,‡ A. Panagiotou,219,‡ N. Saoulidou,219,‡ E. Tziaferi,219,‡ I. Evangelou,220,‡ G. Flouris,220,‡
C. Foudas,220,‡ P. Kokkas,220,‡ N. Loukas,220,‡ N. Manthos,220,‡ I. Papadopoulos,220,‡ E. Paradas,220,‡ J. Strologas,220,‡
G. Bencze,221,‡ C. Hajdu,221,‡ A. Hazi,221,‡ P. Hidas,221,‡ D. Horvath,221,fff,‡ F. Sikler,221,‡ V. Veszpremi,221,‡
G. Vesztergombi,221,ggg,‡ A. J. Zsigmond,221,‡ N. Beni,222,‡ S. Czellar,222,‡ J. Karancsi,222,hhh,‡ J. Molnar,222,‡ Z. Szillasi,222,‡
M. Bartók,223,iii,‡ A. Makovec,223,‡ P. Raics,223,‡ Z. L. Trocsanyi,223,‡ B. Ujvari,223,‡ P. Mal,224,‡ K. Mandal,224,‡ N. Sahoo,224,‡
S. K. Swain,224,‡ S. Bansal,225,‡ S. B. Beri,225,‡ V. Bhatnagar,225,‡ R. Chawla,225,‡ R. Gupta,225,‡ U. Bhawandeep,225,‡
A. K. Kalsi,225,‡ A. Kaur,225,‡ M. Kaur,225,‡ R. Kumar,225,‡ A. Mehta,225,‡ M. Mittal,225,‡ N. Nishu,225,‡ J. B. Singh,225,‡
G. Walia,225,‡ Ashok Kumar,226,‡ Arun Kumar,226,‡ A. Bhardwaj,226,‡ B. C. Choudhary,226,‡ R. B. Garg,226,‡ A. Kumar,226,‡
S. Malhotra,226,‡ M. Naimuddin,226,‡ K. Ranjan,226,‡ R. Sharma,226,‡ V. Sharma,226,‡ S. Banerjee,227,‡ S. Bhattacharya,227,‡
191803-19
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
K. Chatterjee,227,‡ S. Dey,227,‡ S. Dutta,227,‡ Sa. Jain,227,‡ Sh. Jain,227,‡ R. Khurana,227,‡ N. Majumdar,227,‡ A. Modak,227,‡
K. Mondal,227,‡ S. Mukherjee,227,‡ S. Mukhopadhyay,227,‡ A. Roy,227,‡ D. Roy,227,‡ S. Roy Chowdhury,227,‡ S. Sarkar,227,‡
M. Sharan,227,‡ A. Abdulsalam,228,‡ R. Chudasama,228,‡ D. Dutta,228,‡ V. Jha,228,‡ V. Kumar,228,‡ A. K. Mohanty,228,oo,‡
L. M. Pant,228,‡ P. Shukla,228,‡ A. Topkar,228,‡ T. Aziz,229,‡ S. Banerjee,229,‡ S. Bhowmik,229,jjj,‡ R. M. Chatterjee,229,‡
R. K. Dewanjee,229,‡ S. Dugad,229,‡ S. Ganguly,229,‡ S. Ghosh,229,‡ M. Guchait,229,‡ A. Gurtu,229,kkk,‡ G. Kole,229,‡
S. Kumar,229,‡ B. Mahakud,229,‡ M. Maity,229,jjj,‡ G. Majumder,229,‡ K. Mazumdar,229,‡ S. Mitra,229,‡ G. B. Mohanty,229,‡
B. Parida,229,‡ T. Sarkar,229,jjj,‡ K. Sudhakar,229,‡ N. Sur,229,‡ B. Sutar,229,‡ N. Wickramage,229,lll,‡ S. Sharma,230,‡
H. Bakhshiansohi,231,‡ H. Behnamian,231,‡ S. M. Etesami,231,mmm,‡ A. Fahim,231,nnn,‡ R. Goldouzian,231,‡ M. Khakzad,231,‡
M. Mohammadi Najafabadi,231,‡ M. Naseri,231,‡ S. Paktinat Mehdiabadi,231,‡ F. Rezaei Hosseinabadi,231,‡
B. Safarzadeh,231,ooo,‡ M. Zeinali,231,‡ M. Felcini,232,‡ M. Grunewald,232,‡ M. Abbrescia,233a,233b,‡ C. Calabria,233a,233b,‡
C. Caputo,233a,233b,‡ S. S. Chhibra,233a,233b,‡ A. Colaleo,233a,‡ D. Creanza,233a,233c,‡ L. Cristella,233a,233b,‡
N. De Filippis,233a,233c,‡ M. De Palma,233a,233b,‡ L. Fiore,233a,‡ G. Iaselli,233a,233c,‡ G. Maggi,233a,233c,‡ M. Maggi,233a,‡
G. Miniello,233a,233b,‡ S. My,233a,233c,‡ S. Nuzzo,233a,233b,‡ A. Pompili,233a,233b,‡ G. Pugliese,233a,233c,‡ R. Radogna,233a,233b,‡
A. Ranieri,233a,‡ G. Selvaggi,233a,233b,‡ L. Silvestris,233a,oo,‡ R. Venditti,233a,233b,‡ P. Verwilligen,233a,‡ G. Abbiendi,234a,‡
C. Battilana,234a,oo,‡ A. C. Benvenuti,234a,‡ D. Bonacorsi,234a,234b,‡ S. Braibant-Giacomelli,234a,234b,‡ L. Brigliadori,234a,234b,‡
R. Campanini,234a,234b,‡ P. Capiluppi,234a,234b,‡ A. Castro,234a,234b,‡ F. R. Cavallo,234a,‡ G. Codispoti,234a,234b,‡
M. Cuffiani,234a,234b,‡ G. M. Dallavalle,234a,‡ F. Fabbri,234a,‡ A. Fanfani,234a,234b,‡ D. Fasanella,234a,234b,‡ P. Giacomelli,234a,‡
C. Grandi,234a,‡ L. Guiducci,234a,234b,‡ S. Marcellini,234a,‡ G. Masetti,234a,‡ A. Montanari,234a,‡ F. L. Navarria,234a,234b,‡
A. Perrotta,234a,‡ A. M. Rossi,234a,234b,‡ T. Rovelli,234a,234b,‡ G. P. Siroli,234a,234b,‡ N. Tosi,234a,234b,‡ R. Travaglini,234a,234b,‡
G. Cappello,235a,‡ M. Chiorboli,235a,235b,‡ S. Costa,235a,235b,‡ F. Giordano,235a,‡ R. Potenza,235a,235b,‡ A. Tricomi,235a,235b,‡
C. Tuve,235a,235b,‡ G. Barbagli,236a,‡ V. Ciulli,236a,236b,‡ C. Civinini,236a,‡ R. D’Alessandro,236a,236b,‡ E. Focardi,236a,236b,‡
S. Gonzi,236a,236b,‡ V. Gori,236a,236b,‡ P. Lenzi,236a,236b,‡ M. Meschini,236a,‡ S. Paoletti,236a,‡ G. Sguazzoni,236a,‡
A. Tropiano,236a,236b,‡ L. Viliani,236a,236b,‡ L. Benussi,237,‡ S. Bianco,237,‡ F. Fabbri,237,‡ D. Piccolo,237,‡ V. Calvelli,238a,238b,‡
F. Ferro,238a,‡ M. Lo Vetere,238a,238b,‡ E. Robutti,238a,‡ S. Tosi,238a,238b,‡ M. E. Dinardo,239a,239b,‡ S. Fiorendi,239a,239b,‡
S. Gennai,239a,‡ R. Gerosa,239a,239b,‡ A. Ghezzi,239a,239b,‡ P. Govoni,239a,239b,‡ S. Malvezzi,239a,‡ R. A. Manzoni,239a,239b,‡
B. Marzocchi,239a,239b,oo,‡ D. Menasce,239a,‡ L. Moroni,239a,‡ M. Paganoni,239a,239b,‡ D. Pedrini,239a,‡ S. Ragazzi,239a,239b,‡
N. Redaelli,239a,‡ T. Tabarelli de Fatis,239a,239b,‡ S. Buontempo,240a,‡ N. Cavallo,240a,240c,‡ S. Di Guida,240a,240d,oo,‡
M. Esposito,240a,240b,‡ F. Fabozzi,240a,240c,‡ A. O. M. Iorio,240a,240b,‡ G. Lanza,240a,‡ L. Lista,240a,‡ S. Meola,240a,240d,oo,‡
M. Merola,240a,‡ P. Paolucci,240a,oo,‡ C. Sciacca,240a,240b,‡ F. Thyssen,240a,‡ P. Azzi,241a,oo,‡ N. Bacchetta,241a,‡
D. Bisello,241a,241b,‡ A. Branca,241a,241b,‡ R. Carlin,241a,241b,‡ A. Carvalho Antunes De Oliveira,241a,241b,‡ P. Checchia,241a,‡
M. Dall’Osso,241a,241b,oo,‡ T. Dorigo,241a,‡ U. Dosselli,241a,‡ F. Gasparini,241a,241b,‡ U. Gasparini,241a,241b,‡ A. Gozzelino,241a,‡
K. Kanishchev,241a,241c,‡ S. Lacaprara,241a,‡ M. Margoni,241a,241b,‡ A. T. Meneguzzo,241a,241b,‡ J. Pazzini,241a,241b,‡
N. Pozzobon,241a,241b,‡ P. Ronchese,241a,241b,‡ F. Simonetto,241a,241b,‡ E. Torassa,241a,‡ M. Tosi,241a,241b,‡ M. Zanetti,241a,‡
P. Zotto,241a,241b,‡ A. Zucchetta,241a,241b,oo,‡ G. Zumerle,241a,241b,‡ A. Braghieri,242a,‡ M. Gabusi,242a,242b,‡ A. Magnani,242a,‡
S. P. Ratti,242a,242b,‡ V. Re,242a,‡ C. Riccardi,242a,242b,‡ P. Salvini,242a,‡ I. Vai,242a,‡ P. Vitulo,242a,242b,‡
L. Alunni Solestizi,243a,243b,‡ M. Biasini,243a,243b,‡ G. M. Bilei,243a,‡ D. Ciangottini,243a,243b,oo,‡ L. Fanò,243a,243b,‡
P. Lariccia,243a,243b,‡ G. Mantovani,243a,243b,‡ M. Menichelli,243a,‡ A. Saha,243a,‡ A. Santocchia,243a,243b,‡ A. Spiezia,243a,243b,‡
K. Androsov,244a,ppp,‡ P. Azzurri,244a,‡ G. Bagliesi,244a,‡ J. Bernardini,244a,‡ T. Boccali,244a,‡ G. Broccolo,244a,244c,‡
R. Castaldi,244a,‡ M. A. Ciocci,244a,ppp,‡ R. Dell’Orso,244a,‡ S. Donato,244a,244c,oo,‡ G. Fedi,244a,‡ L. Foà,244a,244c,,‡
A. Giassi,244a,‡ M. T. Grippo,244a,ppp,‡ F. Ligabue,244a,244c,‡ T. Lomtadze,244a,‡ L. Martini,244a,244b,‡ A. Messineo,244a,244b,‡
F. Palla,244a,‡ A. Rizzi,244a,244b,‡ A. Savoy-Navarro,244a,qqq,‡ A. T. Serban,244a,‡ P. Spagnolo,244a,‡ P. Squillacioti,244a,ppp,‡
R. Tenchini,244a,‡ G. Tonelli,244a,244b,‡ A. Venturi,244a,‡ P. G. Verdini,244a,‡ L. Barone,245a,245b,‡ F. Cavallari,245a,‡
G. D’imperio,245a,245b,oo,‡ D. Del Re,245a,245b,‡ M. Diemoz,245a,‡ S. Gelli,245a,245b,‡ C. Jorda,245a,‡ E. Longo,245a,245b,‡
F. Margaroli,245a,245b,‡ P. Meridiani,245a,‡ F. Micheli,245a,245b,‡ G. Organtini,245a,245b,‡ R. Paramatti,245a,‡ F. Preiato,245a,245b,‡
S. Rahatlou,245a,245b,‡ C. Rovelli,245a,‡ F. Santanastasio,245a,245b,‡ P. Traczyk,245a,245b,oo,‡ N. Amapane,246a,246b,‡
R. Arcidiacono,246a,246c,‡ S. Argiro,246a,246b,‡ M. Arneodo,246a,246c,‡ R. Bellan,246a,246b,‡ C. Biino,246a,‡ N. Cartiglia,246a,‡
M. Costa,246a,246b,‡ R. Covarelli,246a,246b,‡ A. Degano,246a,246b,‡ N. Demaria,246a,‡ L. Finco,246a,246b,oo,‡ B. Kiani,246a,246b,‡
C. Mariotti,246a,‡ S. Maselli,246a,‡ E. Migliore,246a,246b,‡ V. Monaco,246a,246b,‡ E. Monteil,246a,246b,‡ M. Musich,246a,‡
M. M. Obertino,246a,246b,‡ L. Pacher,246a,246b,‡ N. Pastrone,246a,‡ M. Pelliccioni,246a,‡ G. L. Pinna Angioni,246a,246b,‡
191803-20
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
F. Ravera,246a,246b,‡ A. Romero,246a,246b,‡ M. Ruspa,246a,246c,‡ R. Sacchi,246a,246b,‡ A. Solano,246a,246b,‡ A. Staiano,246a,‡
U. Tamponi,246a,‡ S. Belforte,247a,‡ V. Candelise,247a,247b,oo,‡ M. Casarsa,247a,‡ F. Cossutti,247a,‡ G. Della Ricca,247a,247b,‡
B. Gobbo,247a,‡ C. La Licata,247a,247b,‡ M. Marone,247a,247b,‡ A. Schizzi,247a,247b,‡ T. Umer,247a,247b,‡ A. Zanetti,247a,‡
S. Chang,248,‡ A. Kropivnitskaya,248,‡ S. K. Nam,248,‡ D. H. Kim,249,‡ G. N. Kim,249,‡ M. S. Kim,249,‡ D. J. Kong,249,‡
S. Lee,249,‡ Y. D. Oh,249,‡ A. Sakharov,249,‡ D. C. Son,249,‡ J. A. Brochero Cifuentes,250,‡ H. Kim,250,‡ T. J. Kim,250,‡
M. S. Ryu,250,‡ S. Song,251,‡ S. Choi,252,‡ Y. Go,252,‡ D. Gyun,252,‡ B. Hong,252,‡ M. Jo,252,‡ H. Kim,252,‡ Y. Kim,252,‡
B. Lee,252,‡ K. Lee,252,‡ K. S. Lee,252,‡ S. Lee,252,‡ S. K. Park,252,‡ Y. Roh,252,‡ H. D. Yoo,253,‡ M. Choi,254,‡ J. H. Kim,254,‡
J. S. H. Lee,254,‡ I. C. Park,254,‡ G. Ryu,254,‡ Y. Choi,255,‡ Y. K. Choi,255,‡ J. Goh,255,‡ D. Kim,255,‡ E. Kwon,255,‡ J. Lee,255,‡
I. Yu,255,‡ A. Juodagalvis,256,‡ J. Vaitkus,256,‡ Z. A. Ibrahim,257,‡ J. R. Komaragiri,257,‡ M. A. B. Md Ali,257,rrr,‡
F. Mohamad Idris,257,‡ W. A. T. Wan Abdullah,257,‡ E. Casimiro Linares,258,‡ H. Castilla-Valdez,258,‡
E. De La Cruz-Burelo,258,‡ I. Heredia-de La Cruz,258,sss,‡ A. Hernandez-Almada,258,‡ R. Lopez-Fernandez,258,‡
A. Sanchez-Hernandez,258,‡ S. Carrillo Moreno,259,‡ F. Vazquez Valencia,259,‡ S. Carpinteyro,260,‡ I. Pedraza,260,‡
H. A. Salazar Ibarguen,260,‡ A. Morelos Pineda,261,‡ D. Krofcheck,262,‡ P. H. Butler,263,‡ S. Reucroft,263,‡ A. Ahmad,264,‡
M. Ahmad,264,‡ Q. Hassan,264,‡ H. R. Hoorani,264,‡ W. A. Khan,264,‡ T. Khurshid,264,‡ M. Shoaib,264,‡ H. Bialkowska,265,‡
M. Bluj,265,‡ B. Boimska,265,‡ T. Frueboes,265,‡ M. Górski,265,‡ M. Kazana,265,‡ K. Nawrocki,265,‡
K. Romanowska-Rybinska,265,‡ M. Szleper,265,‡ P. Zalewski,265,‡ G. Brona,266,‡ K. Bunkowski,266,‡ K. Doroba,266,‡
A. Kalinowski,266,‡ M. Konecki,266,‡ J. Krolikowski,266,‡ M. Misiura,266,‡ M. Olszewski,266,‡ M. Walczak,266,‡
P. Bargassa,267,‡ C. Beirão Da Cruz E Silva,267,‡ A. Di Francesco,267,‡ P. Faccioli,267,‡ P. G. Ferreira Parracho,267,‡
M. Gallinaro,267,‡ L. Lloret Iglesias,267,‡ F. Nguyen,267,‡ J. Rodrigues Antunes,267,‡ J. Seixas,267,‡ O. Toldaiev,267,‡
D. Vadruccio,267,‡ J. Varela,267,‡ P. Vischia,267,‡ S. Afanasiev,268,‡ P. Bunin,268,‡ M. Gavrilenko,268,‡ I. Golutvin,268,‡
I. Gorbunov,268,‡ A. Kamenev,268,‡ V. Karjavin,268,‡ V. Konoplyanikov,268,‡ A. Lanev,268,‡ A. Malakhov,268,‡
V. Matveev,268,ttt,‡ P. Moisenz,268,‡ V. Palichik,268,‡ V. Perelygin,268,‡ S. Shmatov,268,‡ S. Shulha,268,‡ N. Skatchkov,268,‡
V. Smirnov,268,‡ T. Toriashvili,268,uuu,‡ A. Zarubin,268,‡ V. Golovtsov,269,‡ Y. Ivanov,269,‡ V. Kim,269,vvv,‡ E. Kuznetsova,269,‡
P. Levchenko,269,‡ V. Murzin,269,‡ V. Oreshkin,269,‡ I. Smirnov,269,‡ V. Sulimov,269,‡ L. Uvarov,269,‡ S. Vavilov,269,‡
A. Vorobyev,269,‡ Yu. Andreev,270,‡ A. Dermenev,270,‡ S. Gninenko,270,‡ N. Golubev,270,‡ A. Karneyeu,270,‡ M. Kirsanov,270,‡
N. Krasnikov,270,‡ A. Pashenkov,270,‡ D. Tlisov,270,‡ A. Toropin,270,‡ V. Epshteyn,271,‡ V. Gavrilov,271,‡ N. Lychkovskaya,271,‡
V. Popov,271,‡ I. Pozdnyakov,271,‡ G. Safronov,271,‡ A. Spiridonov,271,‡ E. Vlasov,271,‡ A. Zhokin,271,‡ V. Andreev,272,‡
M. Azarkin,272,www,‡ I. Dremin,272,www,‡ M. Kirakosyan,272,‡ A. Leonidov,272,www,‡ G. Mesyats,272,‡ S. V. Rusakov,272,‡
A. Vinogradov,272,‡ A. Baskakov,273,‡ A. Belyaev,273,‡ E. Boos,273,‡ V. Bunichev,273,‡ M. Dubinin,273,xxx,‡ L. Dudko,273,‡
A. Ershov,273,‡ A. Gribushin,273,‡ V. Klyukhin,273,‡ O. Kodolova,273,‡ I. Lokhtin,273,‡ I. Myagkov,273,‡ S. Obraztsov,273,‡
S. Petrushanko,273,‡ V. Savrin,273,‡ I. Azhgirey,274,‡ I. Bayshev,274,‡ S. Bitioukov,274,‡ V. Kachanov,274,‡ A. Kalinin,274,‡
D. Konstantinov,274,‡ V. Krychkine,274,‡ V. Petrov,274,‡ R. Ryutin,274,‡ A. Sobol,274,‡ L. Tourtchanovitch,274,‡ S. Troshin,274,‡
N. Tyurin,274,‡ A. Uzunian,274,‡ A. Volkov,274,‡ P. Adzic,275,yyy,‡ M. Ekmedzic,275,‡ J. Milosevic,275,‡ V. Rekovic,275,‡
J. Alcaraz Maestre,276,‡ E. Calvo,276,‡ M. Cerrada,276,‡ M. Chamizo Llatas,276,‡ N. Colino,276,‡ B. De La Cruz,276,‡
A. Delgado Peris,276,‡ D. Domínguez Vázquez,276,‡ A. Escalante Del Valle,276,‡ C. Fernandez Bedoya,276,‡
J. P. Fernández Ramos,276,‡ J. Flix,276,‡ M. C. Fouz,276,‡ P. Garcia-Abia,276,‡ O. Gonzalez Lopez,276,‡ S. Goy Lopez,276,‡
J. M. Hernandez,276,‡ M. I. Josa,276,‡ E. Navarro De Martino,276,‡ A. Pérez-Calero Yzquierdo,276,‡ J. Puerta Pelayo,276,‡
A. Quintario Olmeda,276,‡ I. Redondo,276,‡ L. Romero,276,‡ M. S. Soares,276,‡ C. Albajar,277,‡ J. F. de Trocóniz,277,‡
M. Missiroli,277,‡ D. Moran,277,‡ H. Brun,278,‡ J. Cuevas,278,‡ J. Fernandez Menendez,278,‡ S. Folgueras,278,‡
I. Gonzalez Caballero,278,‡ E. Palencia Cortezon,278,‡ J. M. Vizan Garcia,278,‡ I. J. Cabrillo,279,‡ A. Calderon,279,‡
J. R. Castiñeiras De Saa,279,‡ J. Duarte Campderros,279,‡ M. Fernandez,279,‡ G. Gomez,279,‡ A. Graziano,279,‡
A. Lopez Virto,279,‡ J. Marco,279,‡ R. Marco,279,‡ C. Martinez Rivero,279,‡ F. Matorras,279,‡ F. J. Munoz Sanchez,279,‡
J. Piedra Gomez,279,‡ T. Rodrigo,279,‡ A. Y. Rodríguez-Marrero,279,‡ A. Ruiz-Jimeno,279,‡ L. Scodellaro,279,‡ I. Vila,279,‡
R. Vilar Cortabitarte,279,‡ D. Abbaneo,280,‡ E. Auffray,280,‡ G. Auzinger,280,‡ M. Bachtis,280,‡ P. Baillon,280,‡ A. H. Ball,280,‡
D. Barney,280,‡ A. Benaglia,280,‡ J. Bendavid,280,‡ L. Benhabib,280,‡ J. F. Benitez,280,‡ G. M. Berruti,280,‡ P. Bloch,280,‡
A. Bocci,280,‡ A. Bonato,280,‡ C. Botta,280,‡ H. Breuker,280,‡ T. Camporesi,280,‡ G. Cerminara,280,‡ S. Colafranceschi,280,zzz,‡
M. D’Alfonso,280,‡ D. d’Enterria,280,‡ A. Dabrowski,280,‡ V. Daponte,280,‡ A. David,280,‡ M. De Gruttola,280,‡ F. De Guio,280,‡
A. De Roeck,280,‡ S. De Visscher,280,‡ E. Di Marco,280,‡ M. Dobson,280,‡ M. Dordevic,280,‡ T. du Pree,280,‡
N. Dupont-Sagorin,280,‡ A. Elliott-Peisert,280,‡ G. Franzoni,280,‡ W. Funk,280,‡ D. Gigi,280,‡ K. Gill,280,‡ D. Giordano,280,‡
191803-21
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
M. Girone,280,‡ F. Glege,280,‡ R. Guida,280,‡ S. Gundacker,280,‡ M. Guthoff,280,‡ J. Hammer,280,‡ M. Hansen,280,‡ P. Harris,280,‡
J. Hegeman,280,‡ V. Innocente,280,‡ P. Janot,280,‡ H. Kirschenmann,280,‡ M. J. Kortelainen,280,‡ K. Kousouris,280,‡
K. Krajczar,280,‡ P. Lecoq,280,‡ C. Lourenço,280,‡ M. T. Lucchini,280,‡ N. Magini,280,‡ L. Malgeri,280,‡ M. Mannelli,280,‡
J. Marrouche,280,‡ A. Martelli,280,‡ L. Masetti,280,‡ F. Meijers,280,‡ S. Mersi,280,‡ E. Meschi,280,‡ F. Moortgat,280,‡
S. Morovic,280,‡ M. Mulders,280,‡ M. V. Nemallapudi,280,‡ H. Neugebauer,280,‡ S. Orfanelli,280,aaaa,‡ L. Orsini,280,‡
L. Pape,280,‡ E. Perez,280,‡ A. Petrilli,280,‡ G. Petrucciani,280,‡ A. Pfeiffer,280,‡ D. Piparo,280,‡ A. Racz,280,‡ G. Rolandi,280,bbbb,‡
M. Rovere,280,‡ M. Ruan,280,‡ H. Sakulin,280,‡ C. Schäfer,280,‡ C. Schwick,280,‡ A. Sharma,280,‡ P. Silva,280,‡ M. Simon,280,‡
P. Sphicas,280,cccc,‡ D. Spiga,280,‡ J. Steggemann,280,‡ B. Stieger,280,‡ M. Stoye,280,‡ Y. Takahashi,280,‡ D. Treille,280,‡
A. Tsirou,280,‡ G. I. Veres,280,ggg,‡ N. Wardle,280,‡ H. K. Wöhri,280,‡ A. Zagozdzinska,280,dddd,‡ W. D. Zeuner,280,‡ W. Bertl,281,‡
K. Deiters,281,‡ W. Erdmann,281,‡ R. Horisberger,281,‡ Q. Ingram,281,‡ H. C. Kaestli,281,‡ D. Kotlinski,281,‡
U. Langenegger,281,‡ T. Rohe,281,‡ F. Bachmair,282,‡ L. Bäni,282,‡ L. Bianchini,282,‡ M. A. Buchmann,282,‡ B. Casal,282,‡
G. Dissertori,282,‡ M. Dittmar,282,‡ M. Donegà,282,‡ M. Dünser,282,‡ P. Eller,282,‡ C. Grab,282,‡ C. Heidegger,282,‡ D. Hits,282,‡
J. Hoss,282,‡ G. Kasieczka,282,‡ W. Lustermann,282,‡ B. Mangano,282,‡ A. C. Marini,282,‡ M. Marionneau,282,‡
P. Martinez Ruiz del Arbol,282,‡ M. Masciovecchio,282,‡ D. Meister,282,‡ P. Musella,282,‡ F. Nessi-Tedaldi,282,‡ F. Pandolfi,282,‡
J. Pata,282,‡ F. Pauss,282,‡ L. Perrozzi,282,‡ M. Peruzzi,282,‡ M. Quittnat,282,‡ M. Rossini,282,‡ A. Starodumov,282,eeee,‡
M. Takahashi,282,‡ V. R. Tavolaro,282,‡ K. Theofilatos,282,‡ R. Wallny,282,‡ H. A. Weber,282,‡ T. K. Aarrestad,283,‡
C. Amsler,283,ffff,‡ M. F. Canelli,283,‡ V. Chiochia,283,‡ A. De Cosa,283,‡ C. Galloni,283,‡ A. Hinzmann,283,‡ T. Hreus,283,‡
B. Kilminster,283,‡ C. Lange,283,‡ J. Ngadiuba,283,‡ D. Pinna,283,‡ P. Robmann,283,‡ F. J. Ronga,283,‡ D. Salerno,283,‡
S. Taroni,283,‡ Y. Yang,283,‡ M. Cardaci,284,‡ K. H. Chen,284,‡ T. H. Doan,284,‡ C. Ferro,284,‡ M. Konyushikhin,284,‡
C. M. Kuo,284,‡ W. Lin,284,‡ Y. J. Lu,284,‡ R. Volpe,284,‡ S. S. Yu,284,‡ P. Chang,285,‡ Y. H. Chang,285,‡ Y. W. Chang,285,‡
Y. Chao,285,‡ K. F. Chen,285,‡ P. H. Chen,285,‡ C. Dietz,285,‡ F. Fiori,285,‡ U. Grundler,285,‡ W.-S. Hou,285,‡ Y. Hsiung,285,‡
Y. F. Liu,285,‡ R.-S. Lu,285,‡ M. Miñano Moya,285,‡ E. Petrakou,285,‡ J. f. Tsai,285,‡ Y. M. Tzeng,285,‡ R. Wilken,285,‡
B. Asavapibhop,286,‡ K. Kovitanggoon,286,‡ G. Singh,286,‡ N. Srimanobhas,286,‡ N. Suwonjandee,286,‡ A. Adiguzel,287,‡
S. Cerci,287,gggg,‡ C. Dozen,287,‡ S. Girgis,287,‡ G. Gokbulut,287,‡ Y. Guler,287,‡ E. Gurpinar,287,‡ I. Hos,287,‡
E. E. Kangal,287,hhhh,‡ A. Kayis Topaksu,287,‡ G. Onengut,287,iiii,‡ K. Ozdemir,287,jjjj,‡ S. Ozturk,287,kkkk,‡ B. Tali,287,gggg,‡
H. Topakli,287,kkkk,‡ M. Vergili,287,‡ C. Zorbilmez,287,‡ I. V. Akin,288,‡ B. Bilin,288,‡ S. Bilmis,288,‡ B. Isildak,288,llll,‡
G. Karapinar,288,mmmm,‡ U. E. Surat,288,‡ M. Yalvac,288,‡ M. Zeyrek,288,‡ E. A. Albayrak,289,nnnn,‡ E. Gülmez,289,‡
M. Kaya,289,oooo,‡ O. Kaya,289,pppp,‡ T. Yetkin,289,qqqq,‡ K. Cankocak,290,‡ S. Sen,290,rrrr,‡ F. I. Vardarlı,290,‡ B. Grynyov,291,‡
L. Levchuk,292,‡ P. Sorokin,292,‡ R. Aggleton,293,‡ F. Ball,293,‡ L. Beck,293,‡ J. J. Brooke,293,‡ E. Clement,293,‡ D. Cussans,293,‡
H. Flacher,293,‡ J. Goldstein,293,‡ M. Grimes,293,‡ G. P. Heath,293,‡ H. F. Heath,293,‡ J. Jacob,293,‡ L. Kreczko,293,‡
C. Lucas,293,‡ Z. Meng,293,‡ D. M. Newbold,293,ssss,‡ S. Paramesvaran,293,‡ A. Poll,293,‡ T. Sakuma,293,‡
S. Seif El Nasr-storey,293,‡ S. Senkin,293,‡ D. Smith,293,‡ V. J. Smith,293,‡ K. W. Bell,294,‡ A. Belyaev,294,tttt,‡ C. Brew,294,‡
R. M. Brown,294,‡ D. J. A. Cockerill,294,‡ J. A. Coughlan,294,‡ K. Harder,294,‡ S. Harper,294,‡ E. Olaiya,294,‡ D. Petyt,294,‡
C. H. Shepherd-Themistocleous,294,‡ A. Thea,294,‡ I. R. Tomalin,294,‡ T. Williams,294,‡ W. J. Womersley,294,‡ S. D. Worm,294,‡
M. Baber,295,‡ R. Bainbridge,295,‡ O. Buchmuller,295,‡ A. Bundock,295,‡ D. Burton,295,‡ S. Casasso,295,‡ M. Citron,295,‡
D. Colling,295,‡ L. Corpe,295,‡ N. Cripps,295,‡ P. Dauncey,295,‡ G. Davies,295,‡ A. De Wit,295,‡ M. Della Negra,295,‡
P. Dunne,295,‡ A. Elwood,295,‡ W. Ferguson,295,‡ J. Fulcher,295,‡ D. Futyan,295,‡ G. Hall,295,‡ G. Iles,295,‡ G. Karapostoli,295,‡
M. Kenzie,295,‡ R. Lane,295,‡ R. Lucas,295,ssss,‡ L. Lyons,295,‡ A.-M. Magnan,295,‡ S. Malik,295,‡ J. Nash,295,‡
A. Nikitenko,295,eeee,‡ J. Pela,295,‡ M. Pesaresi,295,‡ K. Petridis,295,‡ D. M. Raymond,295,‡ A. Richards,295,‡ A. Rose,295,‡
C. Seez,295,‡ P. Sharp,295,,‡ A. Tapper,295,‡ K. Uchida,295,‡ M. Vazquez Acosta,295,uuuu,‡ T. Virdee,295,‡ S. C. Zenz,295,‡
J. E. Cole,296,‡ P. R. Hobson,296,‡ A. Khan,296,‡ P. Kyberd,296,‡ D. Leggat,296,‡ D. Leslie,296,‡ I. D. Reid,296,‡ P. Symonds,296,‡
L. Teodorescu,296,‡ M. Turner,296,‡ A. Borzou,297,‡ J. Dittmann,297,‡ K. Hatakeyama,297,‡ A. Kasmi,297,‡ H. Liu,297,‡
N. Pastika,297,‡ O. Charaf,298,‡ S. I. Cooper,298,‡ C. Henderson,298,‡ P. Rumerio,298,‡ A. Avetisyan,299,‡ T. Bose,299,‡
C. Fantasia,299,‡ D. Gastler,299,‡ P. Lawson,299,‡ D. Rankin,299,‡ C. Richardson,299,‡ J. Rohlf,299,‡ J. St. John,299,‡ L. Sulak,299,‡
D. Zou,299,‡ J. Alimena,300,‡ E. Berry,300,‡ S. Bhattacharya,300,‡ D. Cutts,300,‡ N. Dhingra,300,‡ A. Ferapontov,300,‡
A. Garabedian,300,‡ U. Heintz,300,‡ E. Laird,300,‡ G. Landsberg,300,‡ Z. Mao,300,‡ M. Narain,300,‡ S. Sagir,300,‡
T. Sinthuprasith,300,‡ R. Breedon,301,‡ G. Breto,301,‡ M. Calderon De La Barca Sanchez,301,‡ S. Chauhan,301,‡ M. Chertok,301,‡
J. Conway,301,‡ R. Conway,301,‡ P. T. Cox,301,‡ R. Erbacher,301,‡ M. Gardner,301,‡ W. Ko,301,‡ R. Lander,301,‡ M. Mulhearn,301,‡
D. Pellett,301,‡ J. Pilot,301,‡ F. Ricci-Tam,301,‡ S. Shalhout,301,‡ J. Smith,301,‡ M. Squires,301,‡ D. Stolp,301,‡ M. Tripathi,301,‡
191803-22
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
S. Wilbur,301,‡ R. Yohay,301,‡ R. Cousins,302,‡ P. Everaerts,302,‡ C. Farrell,302,‡ J. Hauser,302,‡ M. Ignatenko,302,‡
G. Rakness,302,‡ D. Saltzberg,302,‡ E. Takasugi,302,‡ V. Valuev,302,‡ M. Weber,302,‡ K. Burt,303,‡ R. Clare,303,‡ J. Ellison,303,‡
J. W. Gary,303,‡ G. Hanson,303,‡ J. Heilman,303,‡ M. Ivova Rikova,303,‡ P. Jandir,303,‡ E. Kennedy,303,‡ F. Lacroix,303,‡
O. R. Long,303,‡ A. Luthra,303,‡ M. Malberti,303,‡ M. Olmedo Negrete,303,‡ A. Shrinivas,303,‡ S. Sumowidagdo,303,‡
H. Wei,303,‡ S. Wimpenny,303,‡ J. G. Branson,304,‡ G. B. Cerati,304,‡ S. Cittolin,304,‡ R. T. D’Agnolo,304,‡ A. Holzner,304,‡
R. Kelley,304,‡ D. Klein,304,‡ J. Letts,304,‡ I. Macneill,304,‡ D. Olivito,304,‡ S. Padhi,304,‡ M. Pieri,304,‡ M. Sani,304,‡
V. Sharma,304,‡ S. Simon,304,‡ M. Tadel,304,‡ Y. Tu,304,‡ A. Vartak,304,‡ S. Wasserbaech,304,vvvv,‡ C. Welke,304,‡
F. Würthwein,304,‡ A. Yagil,304,‡ G. Zevi Della Porta,304,‡ D. Barge,305,‡ J. Bradmiller-Feld,305,‡ C. Campagnari,305,‡
A. Dishaw,305,‡ V. Dutta,305,‡ K. Flowers,305,‡ M. Franco Sevilla,305,‡ P. Geffert,305,‡ C. George,305,‡ F. Golf,305,‡
L. Gouskos,305,‡ J. Gran,305,‡ J. Incandela,305,‡ C. Justus,305,‡ N. Mccoll,305,‡ S. D. Mullin,305,‡ J. Richman,305,‡ D. Stuart,305,‡
I. Suarez,305,‡ W. To,305,‡ C. West,305,‡ J. Yoo,305,‡ D. Anderson,306,‡ A. Apresyan,306,‡ A. Bornheim,306,‡ J. Bunn,306,‡
Y. Chen,306,‡ J. Duarte,306,‡ A. Mott,306,‡ H. B. Newman,306,‡ C. Pena,306,‡ M. Pierini,306,‡ M. Spiropulu,306,‡
J. R. Vlimant,306,‡ S. Xie,306,‡ R. Y. Zhu,306,‡ V. Azzolini,307,‡ A. Calamba,307,‡ B. Carlson,307,‡ T. Ferguson,307,‡
Y. Iiyama,307,‡ M. Paulini,307,‡ J. Russ,307,‡ M. Sun,307,‡ H. Vogel,307,‡ I. Vorobiev,307,‡ J. P. Cumalat,308,‡ W. T. Ford,308,‡
A. Gaz,308,‡ F. Jensen,308,‡ A. Johnson,308,‡ M. Krohn,308,‡ T. Mulholland,308,‡ U. Nauenberg,308,‡ J. G. Smith,308,‡
K. Stenson,308,‡ S. R. Wagner,308,‡ J. Alexander,309,‡ A. Chatterjee,309,‡ J. Chaves,309,‡ J. Chu,309,‡ S. Dittmer,309,‡
N. Eggert,309,‡ N. Mirman,309,‡ G. Nicolas Kaufman,309,‡ J. R. Patterson,309,‡ A. Rinkevicius,309,‡ A. Ryd,309,‡
L. Skinnari,309,‡ L. Soffi,309,‡ W. Sun,309,‡ S. M. Tan,309,‡ W. D. Teo,309,‡ J. Thom,309,‡ J. Thompson,309,‡ J. Tucker,309,‡
Y. Weng,309,‡ P. Wittich,309,‡ S. Abdullin,310,‡ M. Albrow,310,‡ J. Anderson,310,‡ G. Apollinari,310,‡ L. A. T. Bauerdick,310,‡
A. Beretvas,310,‡ J. Berryhill,310,‡ P. C. Bhat,310,‡ G. Bolla,310,‡ K. Burkett,310,‡ J. N. Butler,310,‡ H. W. K. Cheung,310,‡
F. Chlebana,310,‡ S. Cihangir,310,‡ V. D. Elvira,310,‡ I. Fisk,310,‡ J. Freeman,310,‡ E. Gottschalk,310,‡ L. Gray,310,‡ D. Green,310,‡
S. Grünendahl,310,‡ O. Gutsche,310,‡ J. Hanlon,310,‡ D. Hare,310,‡ R. M. Harris,310,‡ J. Hirschauer,310,‡ B. Hooberman,310,‡
Z. Hu,310,‡ S. Jindariani,310,‡ M. Johnson,310,‡ U. Joshi,310,‡ A. W. Jung,310,‡ B. Klima,310,‡ B. Kreis,310,‡ S. Kwan,310,,‡
S. Lammel,310,‡ J. Linacre,310,‡ D. Lincoln,310,‡ R. Lipton,310,‡ T. Liu,310,‡ R. Lopes De Sá,310,‡ J. Lykken,310,‡
K. Maeshima,310,‡ J. M. Marraffino,310,‡ V. I. Martinez Outschoorn,310,‡ S. Maruyama,310,‡ D. Mason,310,‡ P. McBride,310,‡
P. Merkel,310,‡ K. Mishra,310,‡ S. Mrenna,310,‡ S. Nahn,310,‡ C. Newman-Holmes,310,‡ V. O’Dell,310,‡ O. Prokofyev,310,‡
E. Sexton-Kennedy,310,‡ A. Soha,310,‡ W. J. Spalding,310,‡ L. Spiegel,310,‡ L. Taylor,310,‡ S. Tkaczyk,310,‡ N. V. Tran,310,‡
L. Uplegger,310,‡ E. W. Vaandering,310,‡ C. Vernieri,310,‡ M. Verzocchi,310,‡ R. Vidal,310,‡ A. Whitbeck,310,‡ F. Yang,310,‡
H. Yin,310,‡ D. Acosta,311,‡ P. Avery,311,‡ P. Bortignon,311,‡ D. Bourilkov,311,‡ A. Carnes,311,‡ M. Carver,311,‡ D. Curry,311,‡
S. Das,311,‡ G. P. Di Giovanni,311,‡ R. D. Field,311,‡ M. Fisher,311,‡ I. K. Furic,311,‡ J. Hugon,311,‡ J. Konigsberg,311,‡
A. Korytov,311,‡ J. F. Low,311,‡ P. Ma,311,‡ K. Matchev,311,‡ H. Mei,311,‡ P. Milenovic,311,wwww,‡ G. Mitselmakher,311,‡
L. Muniz,311,‡ D. Rank,311,‡ L. Shchutska,311,‡ M. Snowball,311,‡ D. Sperka,311,‡ S. j. Wang,311,‡ J. Yelton,311,‡
S. Hewamanage,312,‡ S. Linn,312,‡ P. Markowitz,312,‡ G. Martinez,312,‡ J. L. Rodriguez,312,‡ A. Ackert,313,‡ J. R. Adams,313,‡
T. Adams,313,‡ A. Askew,313,‡ J. Bochenek,313,‡ B. Diamond,313,‡ J. Haas,313,‡ S. Hagopian,313,‡ V. Hagopian,313,‡
K. F. Johnson,313,‡ A. Khatiwada,313,‡ H. Prosper,313,‡ V. Veeraraghavan,313,‡ M. Weinberg,313,‡ V. Bhopatkar,314,‡
M. Hohlmann,314,‡ H. Kalakhety,314,‡ D. Mareskas-palcek,314,‡ T. Roy,314,‡ F. Yumiceva,314,‡ M. R. Adams,315,‡
L. Apanasevich,315,‡ D. Berry,315,‡ R. R. Betts,315,‡ I. Bucinskaite,315,‡ R. Cavanaugh,315,‡ O. Evdokimov,315,‡
L. Gauthier,315,‡ C. E. Gerber,315,‡ D. J. Hofman,315,‡ P. Kurt,315,‡ C. O’Brien,315,‡ I. D. Sandoval Gonzalez,315,‡
C. Silkworth,315,‡ P. Turner,315,‡ N. Varelas,315,‡ Z. Wu,315,‡ M. Zakaria,315,‡ B. Bilki,316,xxxx,‡ W. Clarida,316,‡ K. Dilsiz,316,‡
S. Durgut,316,‡ R. P. Gandrajula,316,‡ M. Haytmyradov,316,‡ V. Khristenko,316,‡ J.-P. Merlo,316,‡ H. Mermerkaya,316,yyyy,‡
A. Mestvirishvili,316,‡ A. Moeller,316,‡ J. Nachtman,316,‡ H. Ogul,316,‡ Y. Onel,316,‡ F. Ozok,316,nnnn,‡ A. Penzo,316,‡
C. Snyder,316,‡ P. Tan,316,‡ E. Tiras,316,‡ J. Wetzel,316,‡ K. Yi,316,‡ I. Anderson,317,‡ B. A. Barnett,317,‡ B. Blumenfeld,317,‡
D. Fehling,317,‡ L. Feng,317,‡ A. V. Gritsan,317,‡ P. Maksimovic,317,‡ C. Martin,317,‡ K. Nash,317,‡ M. Osherson,317,‡
M. Swartz,317,‡ M. Xiao,317,‡ Y. Xin,317,‡ P. Baringer,318,‡ A. Bean,318,‡ G. Benelli,318,‡ C. Bruner,318,‡ J. Gray,318,‡
R. P. Kenny III,318,‡ D. Majumder,318,‡ M. Malek,318,‡ M. Murray,318,‡ D. Noonan,318,‡ S. Sanders,318,‡ R. Stringer,318,‡
Q. Wang,318,‡ J. S. Wood,318,‡ I. Chakaberia,319,‡ A. Ivanov,319,‡ K. Kaadze,319,‡ S. Khalil,319,‡ M. Makouski,319,‡
Y. Maravin,319,‡ L. K. Saini,319,‡ N. Skhirtladze,319,‡ I. Svintradze,319,‡ S. Toda,319,‡ D. Lange,320,‡ F. Rebassoo,320,‡
D. Wright,320,‡ C. Anelli,321,‡ A. Baden,321,‡ O. Baron,321,‡ A. Belloni,321,‡ B. Calvert,321,‡ S. C. Eno,321,‡ C. Ferraioli,321,‡
J. A. Gomez,321,‡ N. J. Hadley,321,‡ S. Jabeen,321,‡ R. G. Kellogg,321,‡ T. Kolberg,321,‡ J. Kunkle,321,‡ Y. Lu,321,‡
191803-23
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
A. C. Mignerey,321,‡ K. Pedro,321,‡ Y. H. Shin,321,‡ A. Skuja,321,‡ M. B. Tonjes,321,‡ S. C. Tonwar,321,‡ A. Apyan,322,‡
R. Barbieri,322,‡ A. Baty,322,‡ K. Bierwagen,322,‡ S. Brandt,322,‡ W. Busza,322,‡ I. A. Cali,322,‡ L. Di Matteo,322,‡
G. Gomez Ceballos,322,‡ M. Goncharov,322,‡ D. Gulhan,322,‡ G. M. Innocenti,322,‡ M. Klute,322,‡ D. Kovalskyi,322,‡
Y. S. Lai,322,‡ Y.-J. Lee,322,‡ A. Levin,322,‡ P. D. Luckey,322,‡ C. Mcginn,322,‡ X. Niu,322,‡ C. Paus,322,‡ D. Ralph,322,‡
C. Roland,322,‡ G. Roland,322,‡ G. S. F. Stephans,322,‡ K. Sumorok,322,‡ M. Varma,322,‡ D. Velicanu,322,‡ J. Veverka,322,‡
J. Wang,322,‡ T. W. Wang,322,‡ B. Wyslouch,322,‡ M. Yang,322,‡ V. Zhukova,322,‡ B. Dahmes,323,‡ A. Finkel,323,‡ A. Gude,323,‡
P. Hansen,323,‡ S. Kalafut,323,‡ S. C. Kao,323,‡ K. Klapoetke,323,‡ Y. Kubota,323,‡ Z. Lesko,323,‡ J. Mans,323,‡
S. Nourbakhsh,323,‡ N. Ruckstuhl,323,‡ R. Rusack,323,‡ N. Tambe,323,‡ J. Turkewitz,323,‡ J. G. Acosta,324,‡ S. Oliveros,324,‡
E. Avdeeva,325,‡ K. Bloom,325,‡ S. Bose,325,‡ D. R. Claes,325,‡ A. Dominguez,325,‡ C. Fangmeier,325,‡ R. Gonzalez Suarez,325,‡
R. Kamalieddin,325,‡ J. Keller,325,‡ D. Knowlton,325,‡ I. Kravchenko,325,‡ J. Lazo-Flores,325,‡ F. Meier,325,‡ J. Monroy,325,‡
F. Ratnikov,325,‡ J. E. Siado,325,‡ G. R. Snow,325,‡ M. Alyari,326,‡ J. Dolen,326,‡ J. George,326,‡ A. Godshalk,326,‡ I. Iashvili,326,‡
J. Kaisen,326,‡ A. Kharchilava,326,‡ A. Kumar,326,‡ S. Rappoccio,326,‡ G. Alverson,327,‡ E. Barberis,327,‡ D. Baumgartel,327,‡
M. Chasco,327,‡ A. Hortiangtham,327,‡ A. Massironi,327,‡ D. M. Morse,327,‡ D. Nash,327,‡ T. Orimoto,327,‡
R. Teixeira De Lima,327,‡ D. Trocino,327,‡ R.-J. Wang,327,‡ D. Wood,327,‡ J. Zhang,327,‡ K. A. Hahn,328,‡ A. Kubik,328,‡
N. Mucia,328,‡ N. Odell,328,‡ B. Pollack,328,‡ A. Pozdnyakov,328,‡ M. Schmitt,328,‡ S. Stoynev,328,‡ K. Sung,328,‡
M. Trovato,328,‡ M. Velasco,328,‡ S. Won,328,‡ A. Brinkerhoff,329,‡ N. Dev,329,‡ M. Hildreth,329,‡ C. Jessop,329,‡
D. J. Karmgard,329,‡ N. Kellams,329,‡ K. Lannon,329,‡ S. Lynch,329,‡ N. Marinelli,329,‡ F. Meng,329,‡ C. Mueller,329,‡
Y. Musienko,329,ttt,‡ T. Pearson,329,‡ M. Planer,329,‡ R. Ruchti,329,‡ G. Smith,329,‡ N. Valls,329,‡ M. Wayne,329,‡ M. Wolf,329,‡
A. Woodard,329,‡ L. Antonelli,330,‡ J. Brinson,330,‡ B. Bylsma,330,‡ L. S. Durkin,330,‡ S. Flowers,330,‡ A. Hart,330,‡ C. Hill,330,‡
R. Hughes,330,‡ K. Kotov,330,‡ T. Y. Ling,330,‡ B. Liu,330,‡ W. Luo,330,‡ D. Puigh,330,‡ M. Rodenburg,330,‡ B. L. Winer,330,‡
H. W. Wulsin,330,‡ O. Driga,331,‡ P. Elmer,331,‡ J. Hardenbrook,331,‡ P. Hebda,331,‡ S. A. Koay,331,‡ P. Lujan,331,‡
D. Marlow,331,‡ T. Medvedeva,331,‡ M. Mooney,331,‡ J. Olsen,331,‡ C. Palmer,331,‡ P. Piroué,331,‡ X. Quan,331,‡ H. Saka,331,‡
D. Stickland,331,‡ C. Tully,331,‡ J. S. Werner,331,‡ A. Zuranski,331,‡ V. E. Barnes,332,‡ D. Benedetti,332,‡ D. Bortoletto,332,‡
L. Gutay,332,‡ M. K. Jha,332,‡ M. Jones,332,‡ K. Jung,332,‡ M. Kress,332,‡ N. Leonardo,332,‡ D. H. Miller,332,‡ N. Neumeister,332,‡
F. Primavera,332,‡ B. C. Radburn-Smith,332,‡ X. Shi,332,‡ I. Shipsey,332,‡ D. Silvers,332,‡ J. Sun,332,‡ A. Svyatkovskiy,332,‡
F. Wang,332,‡ W. Xie,332,‡ L. Xu,332,‡ J. Zablocki,332,‡ N. Parashar,333,‡ J. Stupak,333,‡ A. Adair,334,‡ B. Akgun,334,‡
Z. Chen,334,‡ K. M. Ecklund,334,‡ F. J. M. Geurts,334,‡ M. Guilbaud,334,‡ W. Li,334,‡ B. Michlin,334,‡ M. Northup,334,‡
B. P. Padley,334,‡ R. Redjimi,334,‡ J. Roberts,334,‡ J. Rorie,334,‡ Z. Tu,334,‡ J. Zabel,334,‡ B. Betchart,335,‡ A. Bodek,335,‡
P. de Barbaro,335,‡ R. Demina,335,‡ Y. Eshaq,335,‡ T. Ferbel,335,‡ M. Galanti,335,‡ A. Garcia-Bellido,335,‡ P. Goldenzweig,335,‡
J. Han,335,‡ A. Harel,335,‡ O. Hindrichs,335,‡ A. Khukhunaishvili,335,‡ G. Petrillo,335,‡ M. Verzetti,335,‡ L. Demortier,336,‡
S. Arora,337,‡ A. Barker,337,‡ J. P. Chou,337,‡ C. Contreras-Campana,337,‡ E. Contreras-Campana,337,‡ D. Duggan,337,‡
D. Ferencek,337,‡ Y. Gershtein,337,‡ R. Gray,337,‡ E. Halkiadakis,337,‡ D. Hidas,337,‡ E. Hughes,337,‡ S. Kaplan,337,‡
R. Kunnawalkam Elayavalli,337,‡ A. Lath,337,‡ S. Panwalkar,337,‡ M. Park,337,‡ S. Salur,337,‡ S. Schnetzer,337,‡
D. Sheffield,337,‡ S. Somalwar,337,‡ R. Stone,337,‡ S. Thomas,337,‡ P. Thomassen,337,‡ M. Walker,337,‡ M. Foerster,338,‡
G. Riley,338,‡ K. Rose,338,‡ S. Spanier,338,‡ A. York,338,‡ O. Bouhali,339,zzzz,‡ A. Castaneda Hernandez,339,‡ M. Dalchenko,339,‡
M. De Mattia,339,‡ A. Delgado,339,‡ S. Dildick,339,‡ R. Eusebi,339,‡ W. Flanagan,339,‡ J. Gilmore,339,‡ T. Kamon,339,aaaaa,‡
V. Krutelyov,339,‡ R. Montalvo,339,‡ R. Mueller,339,‡ I. Osipenkov,339,‡ Y. Pakhotin,339,‡ R. Patel,339,‡ A. Perloff,339,‡
J. Roe,339,‡ A. Rose,339,‡ A. Safonov,339,‡ A. Tatarinov,339,‡ K. A. Ulmer,339,oo,‡ N. Akchurin,340,‡ C. Cowden,340,‡
J. Damgov,340,‡ C. Dragoiu,340,‡ P. R. Dudero,340,‡ J. Faulkner,340,‡ S. Kunori,340,‡ K. Lamichhane,340,‡ S. W. Lee,340,‡
T. Libeiro,340,‡ S. Undleeb,340,‡ I. Volobouev,340,‡ E. Appelt,341,‡ A. G. Delannoy,341,‡ S. Greene,341,‡ A. Gurrola,341,‡
R. Janjam,341,‡ W. Johns,341,‡ C. Maguire,341,‡ Y. Mao,341,‡ A. Melo,341,‡ P. Sheldon,341,‡ B. Snook,341,‡ S. Tuo,341,‡
J. Velkovska,341,‡ Q. Xu,341,‡ M. W. Arenton,342,‡ S. Boutle,342,‡ B. Cox,342,‡ B. Francis,342,‡ J. Goodell,342,‡ R. Hirosky,342,‡
A. Ledovskoy,342,‡ H. Li,342,‡ C. Lin,342,‡ C. Neu,342,‡ E. Wolfe,342,‡ J. Wood,342,‡ F. Xia,342,‡ C. Clarke,343,‡ R. Harr,343,‡
P. E. Karchin,343,‡ C. Kottachchi Kankanamge Don,343,‡ P. Lamichhane,343,‡ J. Sturdy,343,‡ D. A. Belknap,344,‡
D. Carlsmith,344,‡ M. Cepeda,344,‡ A. Christian,344,‡ S. Dasu,344,‡ L. Dodd,344,‡ S. Duric,344,‡ E. Friis,344,‡ B. Gomber,344,‡
R. Hall-Wilton,344,‡ M. Herndon,344,‡ A. Hervé,344,‡ P. Klabbers,344,‡ A. Lanaro,344,‡ A. Levine,344,‡ K. Long,344,‡
R. Loveless,344,‡ A. Mohapatra,344,‡ I. Ojalvo,344,‡ T. Perry,344,‡ G. A. Pierro,344,‡ G. Polese,344,‡ I. Ross,344,‡ T. Ruggles,344,‡
T. Sarangi,344,‡ A. Savin,344,‡ A. Sharma,344,‡ N. Smith,344,‡ W. H. Smith,344,‡ D. Taylor,344,‡ and N. Woods344,‡
191803-24
PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
week ending
15 MAY 2015
(ATLAS Collaboration)†
(CMS Collaboration)‡
1
Department of Physics, University of Adelaide, Adelaide, Australia
2
Physics Department, SUNY Albany, Albany, New York, USA
3
Department of Physics, University of Alberta, Edmonton, Alberta, Canada
4a
Department of Physics, Ankara University, Ankara, Turkey
4b
Istanbul Aydin University, Istanbul, Turkey
4c
Division of Physics, TOBB University of Economics and Technology, Ankara, Turkey
5
LAPP, CNRS/IN2P3 and Université Savoie Mont Blanc, Annecy-le-Vieux, France
6
High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois, USA
7
Department of Physics, University of Arizona, Tucson, Arizona, USA
8
Department of Physics, The University of Texas at Arlington, Arlington, Texas, USA
9
Physics Department, University of Athens, Athens, Greece
10
Physics Department, National Technical University of Athens, Zografou, Greece
11
Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
12
Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona, Barcelona, Spain
13
Institute of Physics, University of Belgrade, Belgrade, Serbia
14
Department for Physics and Technology, University of Bergen, Bergen, Norway
15
Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, California, USA
16
Department of Physics, Humboldt University, Berlin, Germany
17
Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland
18
School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
19a
Department of Physics, Bogazici University, Istanbul, Turkey
19b
Department of Physics, Dogus University, Istanbul, Turkey
19c
Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey
20a
INFN Sezione di Bologna, Bologna, Italy
20b
Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy
21
Physikalisches Institut, University of Bonn, Bonn, Germany
22
Department of Physics, Boston University, Boston, Massachusetts, USA
23
Department of Physics, Brandeis University, Waltham, Massachusetts, USA
24a
Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
24b
Electrical Circuits Department, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
24c
Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil
24d
Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil
25
Physics Department, Brookhaven National Laboratory, Upton, New York, USA
26a
National Institute of Physics and Nuclear Engineering, Bucharest, Romania
26b
National Institute for Research and Development of Isotopic and Molecular Technologies,
Physics Department, Cluj Napoca, Romania
26c
University Politehnica Bucharest, Bucharest, Romania
26d
West University in Timisoara, Timisoara, Romania
27
Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina
28
Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
29
Department of Physics, Carleton University, Ottawa, Ontario, Canada
30
CERN, Geneva, Switzerland
31
Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA
32a
Departamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
32b
Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
33a
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
33b
Department of Modern Physics, University of Science and Technology of China, Anhui, China
33c
Department of Physics, Nanjing University, Jiangsu, China
33d
School of Physics, Shandong University, Shandong, China
33e
Department of Physics and Astronomy, Shanghai Key Laboratory for Particle Physics and Cosmology,
Shanghai Jiao Tong University, Shanghai, China
33f
Physics Department, Tsinghua University, Beijing 100084, China
34
Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3,
Clermont-Ferrand, France
35
Nevis Laboratory, Columbia University, Irvington, New York, USA
36
Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark
191803-25
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
37a
week ending
15 MAY 2015
INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Frascati, Italy
37b
Dipartimento di Fisica, Università della Calabria, Rende, Italy
38a
AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
38b
Marian Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland
39
Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
40
Physics Department, Southern Methodist University, Dallas, Texas, USA
41
Physics Department, University of Texas at Dallas, Richardson, Texas, USA
42
DESY, Hamburg and Zeuthen, Germany
43
Institut für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany
44
Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
45
Department of Physics, Duke University, Durham, North Carolina, USA
46
SUPA-School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
47
INFN Laboratori Nazionali di Frascati, Frascati, Italy
48
Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany
49
Section de Physique, Université de Genève, Geneva, Switzerland
50a
INFN Sezione di Genova, Genova, Italy
50b
Dipartimento di Fisica, Università di Genova, Genova, Italy
51a
E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia
51b
High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia
52
II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany
53
SUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
54
II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany
55
Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
56
Department of Physics, Hampton University, Hampton, Virginia, USA
57
Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts, USA
58a
Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
58b
Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
58c
ZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany
59
Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan
60a
Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
60b
Department of Physics, The University of Hong Kong, Hong Kong, China
60c
Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
61
Department of Physics, Indiana University, Bloomington, Indiana, USA
62
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria
63
University of Iowa, Iowa City, Iowa, USA
64
Department of Physics and Astronomy, Iowa State University, Ames, Iowa, USA
65
Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia
66
KEK, High Energy Accelerator Research Organization, Tsukuba, Japan
67
Graduate School of Science, Kobe University, Kobe, Japan
68
Faculty of Science, Kyoto University, Kyoto, Japan
69
Kyoto University of Education, Kyoto, Japan
70
Department of Physics, Kyushu University, Fukuoka, Japan
71
Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
72
Physics Department, Lancaster University, Lancaster, United Kingdom
73a
INFN Sezione di Lecce, Lecce, Italy
73b
Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy
74
Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
75
Department of Physics, Jožef Stefan Institute and University of Ljubljana, Ljubljana, Slovenia
76
School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
77
Department of Physics, Royal Holloway University of London, Surrey, United Kingdom
78
Department of Physics and Astronomy, University College London, London, United Kingdom
79
Louisiana Tech University, Ruston, Louisiana, USA
80
Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France
81
Fysiska institutionen, Lunds universitet, Lund, Sweden
82
Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain
83
Institut für Physik, Universität Mainz, Mainz, Germany
84
School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
85
CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France
86
Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
87
Department of Physics, McGill University, Montreal, Quebec, Canada
191803-26
PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
88
week ending
15 MAY 2015
School of Physics, University of Melbourne, Victoria, Australia
Department of Physics, The University of Michigan, Ann Arbor, Michigan, USA
90
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
91a
INFN Sezione di Milano, Milano, Italy
91b
Dipartimento di Fisica, Università di Milano, Milano, Italy
92
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
93
National Scientific and Educational Centre for Particle and High Energy Physics, Minsk, Republic of Belarus
94
Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
95
Group of Particle Physics, University of Montreal, Montreal, Quebec, Canada
96
P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia
97
Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia
98
National Research Nuclear University MEPhI, Moscow, Russia
99
D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, Russia
100
Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany
101
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany
102
Nagasaki Institute of Applied Science, Nagasaki, Japan
103
Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan
104a
INFN Sezione di Napoli, Napoli, Italy
104b
Dipartimento di Fisica, Università di Napoli, Napoli, Italy
105
Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, USA
106
Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands
107
Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands
108
Department of Physics, Northern Illinois University, DeKalb, Illinois, USA
109
Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia
110
Department of Physics, New York University, New York, New York, USA
111
The Ohio State University, Columbus, Ohio, USA
112
Faculty of Science, Okayama University, Okayama, Japan
113
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma, USA
114
Department of Physics, Oklahoma State University, Stillwater, Oklahoma, USA
115
Palacký University, RCPTM, Olomouc, Czech Republic
116
Center for High Energy Physics, University of Oregon, Eugene, Oregon, USA
117
LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France
118
Graduate School of Science, Osaka University, Osaka, Japan
119
Department of Physics, University of Oslo, Oslo, Norway
120
Department of Physics, Oxford University, Oxford, United Kingdom
121a
INFN Sezione di Pavia, Pavia, Italy
121b
Dipartimento di Fisica, Università di Pavia, Pavia, Italy
122
Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
123
National Research Centre “Kurchatov Institute” B.P.Konstantinov Petersburg Nuclear Physics Institute, St. Petersburg, Russia
124a
INFN Sezione di Pisa, Pisa, Italy
124b
Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy
125
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
126a
Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP, Lisboa, Portugal
126b
Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
126c
Department of Physics, University of Coimbra, Coimbra, Portugal
126d
Centro de Física Nuclear da Universidade de Lisboa, Lisboa, Portugal
126e
Departamento de Fisica, Universidade do Minho, Braga, Portugal
126f
Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada (Spain), Portugal
126g
Dep Fisica and CEFITEC of Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
127
Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic
128
Czech Technical University in Prague, Praha, Czech Republic
129
Faculty of Mathematics and Physics, Charles University in Prague, Praha, Czech Republic
130
State Research Center Institute for High Energy Physics, Protvino, Russia
131
Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom
132a
INFN Sezione di Roma, Roma, Italy
132b
Dipartimento di Fisica, Sapienza Università di Roma, Roma, Italy
133a
INFN Sezione di Roma Tor Vergata, Roma, Italy
133b
Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy
134a
INFN Sezione di Roma Tre, Roma, Italy
134b
Dipartimento di Matematica e Fisica, Università Roma Tre, Roma, Italy
89
191803-27
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
135a
week ending
15 MAY 2015
Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies-Université Hassan II,
Casablanca, Morocco
135b
Centre National de l’Energie des Sciences Techniques Nucleaires, Rabat, Morocco
135c
Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco
135d
Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco
135e
Faculté des sciences, Université Mohammed V-Agdal, Rabat, Morocco
136
DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers), CEA Saclay (Commissariat à l’Energie Atomique et
aux Energies Alternatives), Gif-sur-Yvette, France
137
Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, California, USA
138
Department of Physics, University of Washington, Seattle, Washington, USA
139
Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
140
Department of Physics, Shinshu University, Nagano, Japan
141
Fachbereich Physik, Universität Siegen, Siegen, Germany
142
Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada
143
SLAC National Accelerator Laboratory, Stanford, California, USA
144a
Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic
144b
Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic
145a
Department of Physics, University of Cape Town, Cape Town, South Africa
145b
Department of Physics, University of Johannesburg, Johannesburg, South Africa
145c
School of Physics, University of the Witwatersrand, Johannesburg, South Africa
146a
Department of Physics, Stockholm University, Sweden
146b
The Oskar Klein Centre, Stockholm, Sweden
147
Physics Department, Royal Institute of Technology, Stockholm, Sweden
148
Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, New York, USA
149
Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom
150
School of Physics, University of Sydney, Sydney, Australia
151
Institute of Physics, Academia Sinica, Taipei, Taiwan
152
Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel
153
Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
154
Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
155
International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan
156
Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan
157
Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
158
Department of Physics, University of Toronto, Toronto, Ontario, Canada
159a
TRIUMF, Vancouver, British Columbia, Canada
159b
Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
160
Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
161
Department of Physics and Astronomy, Tufts University, Medford, Massachusetts, USA
162
Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia
163
Department of Physics and Astronomy, University of California Irvine, Irvine, California, USA
164a
INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
164b
ICTP, Trieste, Italy
164c
Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy
165
Department of Physics, University of Illinois, Urbana, Illinois, USA
166
Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden
167
Instituto de Física Corpuscular (IFIC) and Departamento de Física Atómica, Molecular y Nuclear and Departamento de Ingeniería
Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, Spain
168
Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada
169
Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada
170
Department of Physics, University of Warwick, Coventry, United Kingdom
171
Waseda University, Tokyo, Japan
172
Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel
173
Department of Physics, University of Wisconsin, Madison, Wisconsin, USA
174
Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany
175
Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany
176
Department of Physics, Yale University, New Haven, Connecticut, USA
177
Yerevan Physics Institute, Yerevan, Armenia
178
Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules (IN2P3), Villeurbanne, France
179
Yerevan Physics Institute, Yerevan, Armenia
180
Institut für Hochenergiephysik der OeAW, Wien, Austria
191803-28
PHYSICAL REVIEW LETTERS
PRL 114, 191803 (2015)
181
week ending
15 MAY 2015
National Centre for Particle and High Energy Physics, Minsk, Belarus
182
Universiteit Antwerpen, Antwerpen, Belgium
183
Vrije Universiteit Brussel, Brussel, Belgium
184
Université Libre de Bruxelles, Bruxelles, Belgium
185
Ghent University, Ghent, Belgium
186
Université Catholique de Louvain, Louvain-la-Neuve, Belgium
187
Université de Mons, Mons, Belgium
188
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
189
Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
190a
Universidade Estadual Paulista, São Paulo, Brazil
190b
Universidade Federal do ABC, São Paulo, Brazil
191
Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
192
University of Sofia, Sofia, Bulgaria
193
Institute of High Energy Physics, Beijing, China
194
State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
195
Universidad de Los Andes, Bogota, Colombia
196
University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia
197
University of Split, Faculty of Science, Split, Croatia
198
Institute Rudjer Boskovic, Zagreb, Croatia
199
University of Cyprus, Nicosia, Cyprus
200
Charles University, Prague, Czech Republic
201
Academy of Scientific Research and Technology of the Arab Republic of Egypt,
Egyptian Network of High Energy Physics, Cairo, Egypt
202
National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
203
Department of Physics, University of Helsinki, Helsinki, Finland
204
Helsinki Institute of Physics, Helsinki, Finland
205
Lappeenranta University of Technology, Lappeenranta, Finland
206
DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France
207
Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France
208
Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse,
CNRS/IN2P3, Strasbourg, France
209
Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France
210
Université de Lyon, Université Claude Bernard Lyon 1, CNRS-IN2P3, Institut de Physique Nucléaire de Lyon, Villeurbanne, France
211
Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia
212
RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
213
RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
214
RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
215
Deutsches Elektronen-Synchrotron, Hamburg, Germany
216
University of Hamburg, Hamburg, Germany
217
Institut für Experimentelle Kernphysik, Karlsruhe, Germany
218
Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece
219
University of Athens, Athens, Greece
220
University of Ioánnina, Ioánnina, Greece
221
Wigner Research Centre for Physics, Budapest, Hungary
222
Institute of Nuclear Research ATOMKI, Debrecen, Hungary
223
University of Debrecen, Debrecen, Hungary
224
National Institute of Science Education and Research, Bhubaneswar, India
225
Panjab University, Chandigarh, India
226
University of Delhi, Delhi, India
227
Saha Institute of Nuclear Physics, Kolkata, India
228
Bhabha Atomic Research Centre, Mumbai, India
229
Tata Institute of Fundamental Research, Mumbai, India
230
Indian Institute of Science Education and Research (IISER), Pune, India
231
Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
232
University College Dublin, Dublin, Ireland
233a
INFN Sezione di Bari, Bari, Italy
233b
Università di Bari, Bari, Italy
233c
Politecnico di Bari, Bari, Italy
234a
INFN Sezione di Bologna, Bologna, Italy
234b
Università di Bologna, Bologna, Italy
191803-29
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
235a
INFN Sezione di Catania, Catania, Italy
Università di Catania, Catania, Italy
235c
CSFNSM, Catania, Italy
236a
INFN Sezione di Firenze, Firenze, Italy
236b
Università di Firenze, Firenze, Italy
237
INFN Laboratori Nazionali di Frascati, Frascati, Italy
238a
INFN Sezione di Genova, Genova, Italy
238b
Università di Genova, Genova, Italy
239a
INFN Sezione di Milano-Bicocca, Milano, Italy
239b
Università di Milano-Bicocca, Milano, Italy
240a
INFN Sezione di Napoli, Napoli, Italy
240b
Università di Napoli “Federico II,” Napoli, Italy
240c
Università della Basilicata, Roma, Italy
240d
Università G. Marconi, Roma, Italy
241a
INFN Sezione di Padova, Padova, Italy
241b
Università di Padova, Padova, Italy
241c
Università di Trento, Trento, Italy
242a
INFN Sezione di Pavia, Pavia, Italy
242b
Università di Pavia, Pavia, Italy
243a
INFN Sezione di Perugia, Perugia, Italy
243b
Università di Perugia, Perugia, Italy
244a
INFN Sezione di Pisa, Pisa, Italy
244b
Università di Pisa, Pisa, Italy
244c
Scuola Normale Superiore di Pisa, Pisa, Italy
245a
INFN Sezione di Roma, Roma, Italy
245b
Università di Roma, Roma, Italy
246a
INFN Sezione di Torino, Novara, Italy
246b
Università di Torino, Novara, Italy
246c
Università del Piemonte Orientale, Novara, Italy
247a
INFN Sezione di Trieste, Trieste, Italy
247b
Università di Trieste, Trieste, Italy
248
Kangwon National University, Chunchon, Korea
249
Kyungpook National University, Daegu, Korea
250
Chonbuk National University, Jeonju, Korea
251
Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea
252
Korea University, Seoul, Korea
253
Seoul National University, Seoul, Korea
254
University of Seoul, Seoul, Korea
255
Sungkyunkwan University, Suwon, Korea
256
Vilnius University, Vilnius, Lithuania
257
National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
258
Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
259
Universidad Iberoamericana, Mexico City, Mexico
260
Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
261
Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
262
University of Auckland, Auckland, New Zealand
263
University of Canterbury, Christchurch, New Zealand
264
National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
265
National Centre for Nuclear Research, Swierk, Poland
266
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
267
Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal
268
Joint Institute for Nuclear Research, Dubna, Russia
269
Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia
270
Institute for Nuclear Research, Moscow, Russia
271
Institute for Theoretical and Experimental Physics, Moscow, Russia
272
P.N. Lebedev Physical Institute, Moscow, Russia
273
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
274
State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia
275
University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia
276
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
235b
191803-30
week ending
15 MAY 2015
PRL 114, 191803 (2015)
PHYSICAL REVIEW LETTERS
277
Universidad Autónoma de Madrid, Madrid, Spain
278
Universidad de Oviedo, Oviedo, Spain
279
Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
280
CERN, European Organization for Nuclear Research, Geneva, Switzerland
281
Paul Scherrer Institut, Villigen, Switzerland
282
Institute for Particle Physics, ETH Zurich, Zurich, Switzerland
283
Universität Zürich, Zurich, Switzerland
284
National Central University, Chung-Li, Taiwan
285
National Taiwan University (NTU), Taipei, Taiwan
286
Chulalongkorn University, Faculty of Science, Department of Physics, Bangkok, Thailand
287
Cukurova University, Adana, Turkey
288
Middle East Technical University, Physics Department, Ankara, Turkey
289
Bogazici University, Istanbul, Turkey
290
Istanbul Technical University, Istanbul, Turkey
291
Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkov, Ukraine
292
National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine
293
University of Bristol, Bristol, United Kingdom
294
Rutherford Appleton Laboratory, Didcot, United Kingdom
295
Imperial College, London, United Kingdom
296
Brunel University, Uxbridge, United Kingdom
297
Baylor University, Waco, Texas, USA
298
The University of Alabama, Tuscaloosa, Alabama, USA
299
Boston University, Boston, Massachusetts, USA
300
Brown University, Providence, Rhode Island, USA
301
University of California, Davis, Davis, California, USA
302
University of California, Los Angeles, Los Angeles, California, USA
303
University of California, Riverside, Riverside, California, USA
304
University of California, San Diego, La Jolla, California, USA
305
University of California, Santa Barbara, Santa Barbara, California, USA
306
California Institute of Technology, Pasadena, California, USA
307
Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
308
University of Colorado at Boulder, Boulder, Colorado, USA
309
Cornell University, Ithaca, New York, USA
310
Fermi National Accelerator Laboratory, Batavia, Illinois, USA
311
University of Florida, Gainesville, Florida, USA
312
Florida International University, Miami, Florida, USA
313
Florida State University, Tallahassee, Florida, USA
314
Florida Institute of Technology, Melbourne, Florida, USA
315
University of Illinois at Chicago (UIC), Chicago, Illinois, USA
316
The University of Iowa, Iowa City, Iowa, USA
317
Johns Hopkins University, Baltimore, Maryland, USA
318
The University of Kansas, Lawrence, Kansas, USA
319
Kansas State University, Manhattan, Kansas, USA
320
Lawrence Livermore National Laboratory, Livermore, California, USA
321
University of Maryland, College Park, Maryland, USA
322
Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
323
University of Minnesota, Minneapolis, Minnesota, USA
324
University of Mississippi, Oxford, Mississippi, USA
325
University of Nebraska-Lincoln, Lincoln, Nebraska, USA
326
State University of New York at Buffalo, Buffalo, New York, USA
327
Northeastern University, Boston, Massachusetts, USA
328
Northwestern University, Evanston, Illinois, USA
329
University of Notre Dame, Notre Dame, Indiana, USA
330
The Ohio State University, Columbus, Ohio, USA
331
Princeton University, Princeton, New Jersey, USA
332
Purdue University, West Lafayette, Indiana, USA
333
Purdue University Calumet, Hammond, Indiana, USA
334
Rice University, Houston, Texas, USA
335
University of Rochester, Rochester, New York, USA
336
The Rockefeller University, New York, New York, USA
191803-31
week ending
15 MAY 2015
PRL 114, 191803 (2015)
337
PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
338
University of Tennessee, Knoxville, Tennessee, USA
339
Texas A&M University, College Station, Maryland, USA
340
Texas Tech University, Lubbock, Texas, USA
341
Vanderbilt University, Nashville, Tennessee, USA
342
University of Virginia, Charlottesville, Virginia, USA
343
Wayne State University, Detroit, Michigan, USA
344
University of Wisconsin, Madison, Wisconsin, USA
a
Deceased.
Also at Department of Physics, King’s College London, London, United Kingdom.
c
Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
d
Also at Novosibirsk State University, Novosibirsk, Russia.
e
Also at TRIUMF, Vancouver, BC, Canada.
f
Also at Department of Physics, California State University, Fresno, CA, USA.
g
Also at Department of Physics, University of Fribourg, Fribourg, Switzerland.
h
Also at Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Portugal.
i
Also at Tomsk State University, Tomsk, Russia.
j
Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
k
Also at Università di Napoli Parthenope, Napoli, Italy.
l
Also at Institute of Particle Physics (IPP), Canada.
m
Also at Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.
n
Also at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia.
o
Also at Louisiana Tech University, Ruston, LA, USA.
p
Also at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain.
q
Also at Department of Physics, National Tsing Hua University, Taiwan.
r
Also at Department of Physics, The University of Texas at Austin, Austin, TX, USA.
s
Also at Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia.
t
Also at CERN, Geneva, Switzerland.
u
Also at Georgian Technical University (GTU),Tbilisi, Georgia.
v
Also at Ochadai Academic Production, Ochanomizu University, Tokyo, Japan.
w
Also at Manhattan College, New York, NY, USA.
x
Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.
y
Also at LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.
z
Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.
aa
Also at School of Physics, Shandong University, Shandong, China.
bb
Also at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia.
cc
Also at Section de Physique, Université de Genève, Geneva, Switzerland.
dd
Also at International School for Advanced Studies (SISSA), Trieste, Italy.
ee
Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, USA.
ff
Also at School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China.
gg
Also at Faculty of Physics, M.V.Lomonosov Moscow State University, Moscow, Russia.
hh
Also at National Research Nuclear University MEPhI, Moscow, Russia.
ii
Also at Department of Physics, Stanford University, Stanford, CA, USA.
jj
Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.
kk
Also at Department of Physics, The University of Michigan, Ann Arbor, MI, USA.
ll
Also at Discipline of Physics, University of KwaZulu-Natal, Durban, South Africa.
mm
Also at University of Malaya, Department of Physics, Kuala Lumpur, Malaysia.
nn
Also at Vienna University of Technology, Vienna, Austria.
oo
Also at CERN, European Organization for Nuclear Research, Geneva, Switzerland.
pp
Also at State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
qq
Also at Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse, CNRS/IN2P3,
Strasbourg, France.
rr
Also at National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
ss
Also at Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia.
tt
Also at Universidade Estadual de Campinas, Campinas, Brazil.
uu
Also at Centre National de la Recherche Scientifique (CNRS)–IN2P3, Paris, France.
vv
Also at Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3–CNRS, Palaiseau, France.
ww
Also at Joint Institute for Nuclear Research, Dubna, Russia.
xx
Also at Ain Shams University, Cairo, Egypt.
b
191803-32
PRL 114, 191803 (2015)
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PHYSICAL REVIEW LETTERS
week ending
15 MAY 2015
British University in Egypt, Cairo, Egypt.
Helwan University, Cairo, Egypt.
Suez University, Suez, Egypt.
Cairo University, Cairo, Egypt.
Fayoum University, El-Fayoum, Egypt.
Université de Haute Alsace, Mulhouse, France.
Brandenburg University of Technology, Cottbus, Germany.
Institute of Nuclear Research ATOMKI, Debrecen, Hungary.
Eötvös Loránd University, Budapest, Hungary.
University of Debrecen, Debrecen, Hungary.
Wigner Research Centre for Physics, Budapest, Hungary.
University of Visva-Bharati, Santiniketan, India.
King Abdulaziz University, Jeddah, Saudi Arabia.
University of Ruhuna, Matara, Sri Lanka.
Isfahan University of Technology, Isfahan, Iran.
University of Tehran, Department of Engineering Science, Tehran, Iran.
Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Università degli Studi di Siena, Siena, Italy.
Purdue University, West Lafayette, IN, USA.
International Islamic University of Malaysia, Kuala Lumpur, Malaysia.
Consejo National de Ciencia y Tecnologia, Mexico, Mexico.
Institute for Nuclear Research, Moscow, Russia.
Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia.
St. Petersburg State Polytechnical University, St. Petersburg, Russia.
National Research Nuclear University ’Moscow Engineering Physics Institute’ (MEPhI), Moscow, Russia.
California Institute of Technology, Pasadena, CA, USA.
Faculty of Physics, University of Belgrade, Belgrade, Serbia.
Facoltà Ingegneria, Università di Roma, Roma, Italy.
National Technical University of Athens, Athens, Greece.
Scuola Normale e Sezione dell’INFN, Pisa, Italy.
University of Athens, Athens, Greece.
Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland.
Institute for Theoretical and Experimental Physics, Moscow, Russia.
Albert Einstein Center for Fundamental Physics, Bern, Switzerland.
Adiyaman University, Adiyaman, Turkey.
Mersin University, Mersin, Turkey.
Cag University, Mersin, Turkey.
Piri Reis University, Istanbul, Turkey.
Gaziosmanpasa University, Tokat, Turkey.
Ozyegin University, Istanbul, Turkey.
Izmir Institute of Technology, Izmir, Turkey.
Mimar Sinan University, Istanbul, Istanbul, Turkey.
Marmara University, Istanbul, Turkey.
Kafkas University, Kars, Turkey.
Yildiz Technical University, Istanbul, Turkey.
Hacettepe University, Ankara, Turkey.
Rutherford Appleton Laboratory, Didcot, United Kingdom.
School of Physics and Astronomy, University of Southampton, Southampton, United Kingdom.
Instituto de Astrofísica de Canarias, La Laguna, Spain.
Utah Valley University, Orem, UT, USA.
University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia.
Argonne National Laboratory, Argonne, IL, USA.
Erzincan University, Erzincan, Turkey.
Texas A&M University at Qatar, Doha, Qatar.
Kyungpook National University, Daegu, Korea.
191803-33