Bollettino Settimanale
Lunedì 26 gennaio 2015
Martedi’ 27 gennaio 2015
Mercoledi’ 28 gennaio 2015
Meeting
ENTERVISION - European training
network in digital medical imaging for
radiotherapy.
Meeting
ENTERVISION - European training
network in digital medical imaging for
radiotherapy.
SALA LAUREE ORE 15.00
SEDUTA DI LAUREE
http://indico.cern.ch/event/346219/
http://indico.cern.ch/event/346219/
Prof. Riccardo Faccini
Aula Conversi
SALA LAUREE ORE 15.00
SEDUTA DI LAUREE
AULA CARERI ORE 14.00
SEMINARIO INFN- Fisica sperimentale
particelle elementari
The proton radius puzzle and the MUSE
experiment
Michael Kohl
(Hampton University e JLab)
The proton is not an elementary particle, it has a
substructure governed by quarks and gluons. The
spatial extensions of the electric charge and
magnetization determine the size of the proton and
its response to electromagnetic interaction.
Recently, contradicting observations have
challenged our understanding of the proton. The
disagreement
between
proton
radius
determinations from high-precision muonic
hydrogen spectroscopy and numerous atomic
hydrogen and electron scattering measurements
has become known as the proton radius puzzle,
which has received much attention even in public
media. The puzzle has a variety of possible
resolutions, including physics beyond the Standard
Model, missing conventional physics, and errors or
underestimated uncertainties in the extraction of
the radius from the data. I will discuss ways that will
eventually help to resolve the puzzle. The MUon
Scattering Experiment (MUSE) in preparation at
PSI will have a key role toward a resolution of the
puzzle.
Prof. Riccardo Faccini
Aula Conversi
SALA LAUREE ORE 15.00
SEDUTA DI LAUREE
Giovedi’ 29 gennaio 2015
AULA CONVERSI ORE 16.00
SEMINARIO TEORICO
Faddeev eigenfunctions for multipoint potentials
Prof. Petr Grinevich
(Landau
Institute
for
Theoretical
Physics,
Chernogolovka, Russia)
In the study of the multidimensional inverse scattering
problem for the Schroedinger operator it is essential to
know the singularities of the wave functions in the area
of complex momenta (Faddeev eigenfunctions). The
proper formulation of the inverse scattering problem in
the presence of singularities remains an open problem.
To study these singularities we consider the simplest
examples of point-like potentials (first introduced by H.
Bethe and R. Peierls in 1935). These examples are
exactly solvable (joint work with R.G. Novikov).
Venerdì 30 gennaio 2015