11. Sterile Neutrinos:
There are quite strong theoretical arguments indicating that the PMNS-Oscillations are only the lowmass end of a more complete picture with additional sterile neutrinos. Some unexplained
experimental results might also point into this direction. Precision tests of the PMNS model with a
European long-baseline program will be a major contribution to the quest for sterile neutrinos in a
wide parameter range.
Questions:
 None
Speaker:
Theory-talks:
Lepto-genesis, theoretical arguments for sterile neutrinos: André de Gouvêa
Massive neutrinos in astrophysics: Yvonne Wong
Experimental summary on sterile neutrinos: Thierry Lasserre, Michel Sorel
Proposal for a short-baseline experiment at CERN: Carlo Rubbia
Materials:
Theoretical arguments:
Experimental results:
a. LSND
b. MiniBoone
c. Reactor deficit
d. Astrophysical arguments:
Evidence for νμ → νe neutrino oscillations from LSND,
Athanassopoulos, C. et al. (LSND), Phys. Rev. Lett. 81
(1998) 1774-1777, arXiv:nucl-ex/9709006
Event Excess in the MiniBooNE Search for anti-νμ →
anti-νe Oscillations, A.A. Aguilar-Arevalo et al.,
arXiv:1007.1150 [hep-ex], Phys. Rev. Lett. 105,
181801 (2010)
The reactor antineutrino anomaly, G. Mention at al.,
Phys.Rev. D83 (2011) 073006, arXiv:1101.2755
[hep-ex]
Neutrino mass in cosmology: status and prospects
Yvonne Y.Y. Wong, Ann.Rev.Nucl.Sci. 61 (2911) 69
arXiv: 1111.1436 [astro-ph.CO]
Proposals to test eV sterile Neutrinos:
a. Radioactive source in an existing detector
b. Short-baseline accelerator experiments
c. Very-short-baseline reactor experiment
A proposed search for a fourth neutrino with
PBq antineutrino source, Michel Cribier et al.,
Phys.Rev.Lett. 107 (2011) 201801,
arXiv: 1107.2335 [hep-ex]
A search for sterile neutrinos at CERN-PS,
E. Calligarich et al.,
J.Phys.Conf.Ser. 203 (2010) 012110
??
d. Beam-dump in or near existing detector