Dark matter data and quartic self-couplings in Inert Doublet Model

TL;DR

This paper examines the thermal evolution of the Universe within the Inert Doublet Model across different dark matter mass regions, highlighting the importance of quartic self-couplings for astrophysical implications.

Contribution

It introduces the significance of quartic self-couplings in the IDM and analyzes their impact on the Universe's thermal evolution across various dark matter mass regions.

Findings

Different thermal evolution behaviors in low, medium, and high DM mass regions.

Quartic self-couplings significantly influence astrophysical predictions.

Identification of key parameters affecting dark matter phenomenology.

Abstract

We analyse the thermal evolution of the Universe in the Inert Doublet Model for three viable regions of Dark Matter mass: low, medium and high DM mass. Those three regions exhibit different behaviour in the possible types of evolution. We argue that the quartic self-couplings in IDM are significant parameters for the astrophysical analysis.