Do astrophysical data disfavour the minimal supersymmetric standard model?

TL;DR

This paper evaluates whether the minimal supersymmetric standard model (MSSM) can explain dark matter and astrophysical observations, finding that current data and constraints challenge its viability as the sole new physics at TeV scales.

Contribution

The study provides a comprehensive analysis combining astrophysical gamma-ray data and laboratory constraints to assess the MSSM's ability to account for dark matter.

Findings

MSSM fits to gamma-ray excess are poor under current constraints.

Laboratory and astrophysical data collectively disfavor MSSM as the sole dark matter explanation.

Comparison with Higgs mass data raises suspicion about MSSM's validity.

Abstract

If the minimal supersymmetric standard model (MSSM) is the only new physics around the TeV-scale, it has to account for the entire dark matter relic density, or else it will cease to be `minimal'. We use this expectation to obtain the best quantitative explanation of the galactic centre $\gamma$-ray excess. The $\gamma$-ray data/flux limits from other astrophysical sources are also taken into account, together with all laboratory constraints. The lower limit on the relic density, together with the latest direct dark matter search constraints and the shape of the galactic centre $\gamma$-ray spectrum, makes the MSSM fits appear rather poor. A comparison with similar fits of the Higgs boson mass from indirect and direct search results makes one suspicious that the MSSM is not a good explanation of data related to dark matter.