Phenomenology of scotogenic scalar dark matter

TL;DR

This paper reexamines a minimal scotogenic model where scalar dark matter explains neutrino masses, analyzing its experimental signatures and identifying viable parameter regions for future detection at colliders and dark matter experiments.

Contribution

It provides a comprehensive numerical analysis of the minimal scalar scotogenic model, linking dark matter, neutrino masses, and collider signatures.

Findings

Viable parameter regions consistent with current constraints.

Predictions for future direct and indirect detection experiments.

Collider signatures indicating a light dark matter mass range.

Abstract

We reexamine the minimal Singlet + Triplet Scotogenic Model, where dark matter is the mediator of neutrino mass generation. We assume it to be a scalar WIMP, whose stability follows from the same $\mathbb{Z} _{2}$ symmetry that leads to the radiative origin of neutrino masses. The scheme is the minimal one that allows for solar and atmospheric mass scales to be generated. We perform a full numerical analysis of the signatures expected at dark matter as well as collider experiments. We identify parameter regions where dark matter predictions agree with theoretical and experimental constraints, such as neutrino oscillations, Higgs data, dark matter relic abundance and direct detection searches. We also present forecasts for near future direct and indirect detection experiments. These will further probe the parameter space. Finally, we explore collider signatures associated with the mono-jet channel at the LHC, highlighting the existence of a viable light dark matter mass range.