Dark Matter in the Left Right Twin Higgs Model

TL;DR

This paper investigates the potential of neutral Higgs particles in the left-right twin Higgs model as WIMP dark matter candidates, analyzing relic density and parameter space, and comparing with inert Higgs doublet models.

Contribution

It provides a detailed analysis of dark matter relic density in the left-right twin Higgs model and explores the broader inert Higgs doublet model for dark matter.

Findings

Identified parameter regions with correct dark matter relic density.

Demonstrated the viability of neutral Higgs as WIMP dark matter.

Compared dark matter properties between twin Higgs and inert Higgs models.

Abstract

In the left-right twin Higgs model, one of the neutral Higgses is a natural candidate for WIMP dark matter. We analyzed the dark matter relic density in this framework and identified regions of parameter space that provide the right amount of dark matter. We also studied the dark matter in the more general inert Higgs doublet model in which the mass splittings between the dark matter and other particles do not follow the relations in the left-right twin Higgs model.