Dark Matter, LFV and Neutrino Magnetic Moment in the Radiative Seesaw Model with Triplet Fermion

Abstract

In this paper we work in the framework of a radiative seesaw model with triplet fermion $\Sigma$. Due to the $Z_2$ discrete flavor symmetry, the lightest neutral component of $\Sigma$ is stable and thus can be a dark matter candidate. Its mass can be solely determined by the dark matter relic abundance, which is bout 2.594 TeV. The model also predict a dark matter-nucleus scattering cross section that would be accessible with future dark matter direct detection searches. We further investigate constraints on the parameter space of the model from the lepton-flavor-violating processes and neutrino transition magnetic moments, induced by the Yukawa interaction of the $\Sigma$ with the left-handed lepton doublets.

Comments: 12 pages, 4 figures