The real singlet scalar dark matter model

TL;DR

This paper provides a comprehensive analysis of a simple real singlet scalar dark matter model, predicting detection cross sections, considering resonance effects, and identifying excluded regions based on current experiments, with implications for collider Higgs searches.

Contribution

It introduces a detailed analysis of the singlet scalar dark matter model, including resonance effects and experimental constraints, extending previous simplified studies.

Findings

Three parameter regions are excluded by current dark matter searches.

Resonance effects significantly impact annihilation cross section calculations.

Implications for Higgs searches at colliders are discussed.

Abstract

We present an undated comprehensive analysis for the simplest dark matter model in which a real singlet scalar with a $Z_2$ symmetry is introduced to extend the standard model. According to the observed dark matter abundance, we predict the dark matter direct and indirect detection cross sections for the whole parameter space. The Breit-Wigner resonance effect has been considered to calculate the thermally averaged annihilation cross section. It is found that three regions can be excluded by the current direct and indirect dark matter search experiments. In addition, we also discuss the implication of this model for the Higgs searches at colliders.