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

by Melissa van Beekveld, Wim Beenakker, Marrit Schutten, Jeremy De Wit

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Melissa van Beekveld
Submission information
Preprint Link: scipost_202105_00004v3  (pdf)
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
Academic field: Physics
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.

Author comments upon resubmission

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).

Published as SciPost Phys. 11, 049 (2021)

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