Neutrino and dark matter in a gauged $U(1{)}_R$ symmetry

Abstract

We study neutrino and dark matter based on a gauged $U(1{)}_R$ symmetry in a framework of radiative seesaw scenario. Identifying dark matter as a bosoninc particle, it interacts with quark and lepton sectors through vector-like heavier quark and leptons, and plays an role in generating neutrino mass matrix together with neutral heavier fermions. We explore several constraints for masses and couplings related to dark matter by computing relic density and direct search, taking the neutrino oscillation, lepton flavor violations, and muon anomalous magnetic moment into account. Finally, we briefly mention semileptonic decays and neutral meson mixings at one-loop box diagrams through dark matter.

Comments: 13 pages, 2 figures