Inflation due to a non-minimal coupling of singlet scalars in the radiative seesaw model

TL;DR

This paper explores how non-minimal couplings of singlet scalars in an extended radiative seesaw model can simultaneously address inflation, neutrino masses, and baryon asymmetry, linking cosmology and particle physics.

Contribution

It introduces a novel extension of the radiative seesaw model with hierarchical non-minimal scalar couplings to explain inflation and matter-antimatter asymmetry.

Findings

Scalar-driven inflation is feasible within the model.

The model can generate realistic neutrino masses.

It offers a unified framework for cosmology and neutrino physics.

Abstract

The radiative neutrino mass model with inert doublet dark matter is a promising model for the present experimental issues which cannot be explained within the standard model. We study an extension of this model focusing on cosmological features brought about from the scalar sector. Inflation due to singlet scalars with hierarchical non-minimal couplings with the Ricci scalar may give a favorable solution for both neutrino masses and baryon number asymmetry in the Universe.