Scotogenic mechanism from an extended $\boldsymbol{SU(2)_1 \times SU(2)_2 \times U(1)_Y}$ electroweak symmetry

TL;DR

This paper introduces an extended electroweak model with a new gauge symmetry that naturally incorporates dark matter and neutrino mass generation via a radiative Scotogenic mechanism, offering testable experimental predictions.

Contribution

It presents a novel extension of the Standard Model's electroweak sector with a $SU(2)_1 imes SU(2)_2$ gauge group that addresses dark matter and neutrino masses through a radiative Scotogenic process.

Findings

Provides a viable dark matter candidate.

Generates neutrino masses radiatively.

Predicts experimental signatures in electroweak and lepton flavor violation searches.

Abstract

We propose an extension of the electroweak sector of the Standard Model in which the gauge group $SU(2)_L$ is promoted to $SU(2)_1 \times SU(2)_2$. This framework naturally includes a viable dark matter candidate and generates neutrino masses radiatively \`a la Scotogenic. Our scenario can be viewed as an ultraviolet extension of the Scotogenic mechanism, addressing some of its shortcomings. The resulting phenomenology may be probed through a range of experimental signatures, from precision electroweak measurements to searches for lepton flavor violation.