Dark matter detection in the BMSSM

TL;DR

This paper explores how the BMSSM model, which extends the MSSM with non-renormalizable Higgs terms, affects dark matter detection prospects through direct detection and astrophysical signals.

Contribution

It provides a detailed analysis of dark matter detection in the BMSSM, highlighting new viable relic abundance regions and evaluating detection prospects with current and upcoming experiments.

Findings

New relic abundance regions in BMSSM are compatible with WMAP data.

Enhanced detection prospects for gamma-rays, antiprotons, and positrons.

Potential for future experiments to detect neutralino dark matter signals.

Abstract

The addition of non-renormalizable terms involving the Higgs fields to the MSSM (BMSSM) ameliorates the little hierarchy problem of the MSSM. For neutralino dark matter, new regions for which the relic abundance of the LSP is consistent with WMAP (as the bulk region and the stop coannihilation region) are now permitted. In this framework, we analyze in detail the direct dark matter detection prospects in a Xenon-like experiment. On the other hand, we study the capability of detecting gamma-rays, antiprotons and positrons produced in the annihilation of neutralino LSPs in the Fermi and oncoming AMS-02 experiments.