Singlino Resonant Dark Matter and 125 GeV Higgs Boson in High-Scale Supersymmetry

TL;DR

This paper explores a singlino dark matter model within the Nearly MSSM framework, demonstrating that high-scale supersymmetry breaking allows for resonant annihilation consistent with observed relic abundance and Higgs mass, testable by XENON1T.

Contribution

It introduces a high-scale supersymmetry scenario where singlino dark matter achieves the correct relic density through Higgs-mediated resonant annihilation, aligning with Higgs mass measurements.

Findings

Singlino mass receives significant radiative corrections at high-scale SUSY.

Resonant annihilation via Higgs exchange explains dark matter relic abundance.

Scenario is testable by current direct detection experiments like XENON1T.

Abstract

We consider a singlino Dark Matter (DM) scenario in a singlet extension model of the Minimal Supersymmetric Standard Model, which is so-called the Nearly MSSM (nMSSM). We find that with high-scale supersymmetry breaking the singlino can obtain a sizable radiative correction to the mass, which opens a window for the DM scenario with resonant annihilation via the exchange of the Higgs boson. We show that the current DM relic abundance and the Higgs boson mass can be explained simultaneously. This scenario can be fully probed by XENON1T.