Neutrino masses, dark matter and leptogenesis with $U(1{)}_{B-L}$ gauge symmetry

Abstract

We propose a model with an $U(1{)}_{B-L}$ gauge symmetry, in which small neutrino masses, dark matter and the matter-antimatter asymmetry in the Universe can be simultaneously explained. In particular, the neutrino masses are generated radiatively, while the matter-antimatter asymmetry is led by the leptogenesis mechanism, at TeV scale. We also explore allowed regions of the model parameters and discuss some phenomenological effects including lepton flavor violating processes.

Comments: 19 pages, 4 tables, 12 figures; accepted version for publication in Physics of the Dark Universe