Type-III Scotogenic Model: Inflation, Dark Matter and Collider Phenomenology

Abstract

We investigate an extension of the Type-III scotogenic model by incorporating a real singlet scalar. This scalar plays a crucial role as the inflaton due to its non-minimal coupling with the Ricci scalar. The inflaton field subsequently decays into other particles within the Type-III scotogenic framework. In this framework, the inert scalar doublet and fermion triplet are crucial for neutrino mass generation and present strong candidates for 25\% energy budget or dark matter in the Universe. We study their relic abundance and potential for direct detection. Furthermore, we discuss possible observational signals that could be identified in future collider experiments.