Radiative Neutrino Mass with Scotogenic Scalar Triplet
Abstract
We present radiative one-loop neutrino mass model with hypercharge zero scalar triplet in conjunction with another charged singlet scalar and an additional vectorlike lepton doublet. We study three variants of this mass model: the first one without additional beyond-SM symmetry, the second with imposed DM-stabilizing discrete Z_2 symmetry, and the third in which this Z_2 symmetry is promoted to the gauge symmetry U(1)_D. The two latter cases are scotogenic, with a neutral component of the scalar triplet as a dark matter candidate. In first scotogenic model the Z_2-odd dark matter candidate is at the multi-TeV mass scale, so that all new degrees of freedom are beyond the direct reach of the LHC. In second scotogenic setup, with broken U(1)_D symmetry the model may have LHC signatures or be relevant to astrophysical observations, depending on the scale of U(1)_D breaking.
Keywords
Cite
@article{arxiv.1310.3183,
title = {Radiative Neutrino Mass with Scotogenic Scalar Triplet},
author = {Vedran Brdar and Ivica Picek and Branimir Radovcic},
journal= {arXiv preprint arXiv:1310.3183},
year = {2013}
}
Comments
11 pages, 3 figures, matches published version