TY  - JOUR
AU  - Fileviez Perez, P.
AU  - Murgui, C.
PY  - 2018
DA  - 2018//
TI  - Sterile neutrinos and B-L symmetry
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 381
EP  - 387
VL  - 777
PB  - Elsevier Science Bv
AB  - We revisit the relation between the neutrino masses and the spontaneous breaking of the B-L gauge symmetry. We discuss the main scenarios for Dirac and Majorana neutrinos and point out two simple mechanisms for neutrino masses. In this context the neutrino masses can be generated either at tree level or at quantum level and one predicts the existence of very light sterile neutrinos with masses below the eV scale. The predictions for lepton number violating processes such as μ-> e and μ-> e gamma are discussed in detail. The impact from the cosmological constraints on the effective number of relativistic degree of freedom is investigated.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1708.02247
UR  - https://doi.org/10.1016/j.physletb.2017.12.041
DO  - 10.1016/j.physletb.2017.12.041
LA  - English
N1  - WOS:000423930700051
ID  - FileviezPerez+Murgui2018
ER  -