A Scotogenic model with U(1) symmetry and a scalar dark matter

TL;DR

This paper introduces a new scotogenic model with an extra U(1) gauge symmetry and Z2 symmetry, explaining dark matter and neutrino masses simultaneously, and discusses its phenomenology and collider signatures.

Contribution

It proposes a novel extension of the scotogenic model with additional gauge symmetry and particles, providing a comprehensive analysis of dark matter and neutrino mass generation.

Findings

Dark matter relic density consistent with observations

Neutrino masses reproduced at one-loop level

Potential collider signatures at the LHC

Abstract

We study a scotogenic model augmented with an additional U(1) gauge and a discrete Z2 symmetry. The lightest Z2-odd particle in our model becomes the dark matter (DM) candidate while tiny neutrino masses are realized at one loop. We explore the parameter space of the model for which the DM relic density is satisfied, and the correct low-energy neutrino observables are reproduced. The extended gauge symmetry includes beyond Standard Model (SM) particle spectrum consisting of vector-like fermions and scalars. We also highlight possible collider signatures of these particles at the LHC.