Neutralino Relic Density in the CPVMSSM at the ILC

TL;DR

This paper explores how measurements at the ILC can determine the neutralino relic density in a CP-violating MSSM scenario, focusing on dark matter candidate properties and collider-based predictions.

Contribution

It introduces a method to use ILC measurements to fit MSSM parameters with CP phases and predict neutralino relic density.

Findings

Predicted relic density range: 0.116 to 0.19 at 95% CL.

ILC measurements can constrain dark matter properties in CPVMSSM.

Model fitting yields specific parameter estimates for neutralino annihilation.

Abstract

We discuss ILC measurements for a specific MSSM scenario with CP phases, where the lightest neutralino, a candidate for dark matter, annihilates through t-channel exchange of light staus. These prospective ILC measurements are used to fit the underlying model parameters. A collider prediction of the relic density of the neutralino from this fit gives 0.116<Omega h2<0.19 at 95%CL.