Dark matter, fine-tuning and (g-2)_{\mu} in the pMSSM

Submission summary

 Authors (as Contributors): Melissa van Beekveld
Submission information
Data repository: https://zenodo.org/record/4934398#.YQeQT5OA5O8
Date accepted: 2021-08-11
Date submitted: 2021-08-02 08:29
Submitted by: van Beekveld, Melissa
Submitted to: SciPost Physics
Ontological classification
Specialties:
• High-Energy Physics - Phenomenology
Approach: Phenomenological

Abstract

In this paper we perform for the first time an in-depth analysis of the spectra in the phenomenological supersymmetric Standard Model that simultaneously offer an explanation for the $(g-2)_{\mu}$ discrepancy $\Delta a_{\mu}$, result in the right dark-matter relic density $\Omega_{\rm DM} h^2$ and are minimally fine-tuned. The resulting spectra may be obtained from [1]. To discuss the experimental exclusion potential for our models, we analyse the resulting LHC phenomenology as well as the sensitivity of dark-matter direct detection experiments to these spectra. We find that the latter type of experiments with sensitivity to the spin-dependent dark-matter\,--\,nucleon scattering cross section $\sigma_{\rm SD,p}$ will probe all of our found solutions.

Published as SciPost Phys. 11, 049 (2021)

We thank the referee for their response, and have incorporated their suggestions in our paper as follows

1 and 2: We have rewritten lines 222-231. In section 4.4, figure 6, we have included the plot containing data from our previous work and show that the g-2 requirement forbids natural solutions with mDM > 500 GeV, and stressed in the text (line 417-424) that the g-2 requirement is crucial for our results. We also rewrote the last paragraph of our conclusion to clarify the message of our paper (line 445-449).

3 We have included a footnote on page 6 to offer some guidelines to the repository.

List of changes

* We have included a footnote on page 6 offering guidelines to use the data
* We have rewritten lines 222-231
* In section 4.4, figure 6, we have included the plot containing data from our previous work and show that the g-2 requirement forbids natural solutions with mDM > 500 GeV
* We stressed (line 417-424) that the g-2 requirement is crucial to obtain our results
* We rewrote the last paragraph of our conclusion to clarify the message of our paper (line 445-449).