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}(g−2)μ discrepancy \Delta a_{\mu}Δaμ, result in the right dark-matter relic density \Omega_{DM} h^2ΩDMh2 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_{SD,p}σSD,p will probe all of our found solutions.
Highlights
The Large Hadron Collider (LHC) has been searching for over a decade for signs of physics that originate from beyond-the-Standard-Model (BSM) scenarios, including searches for signals that originate from supersymmetric (SUSY) particle production
In this work we perform for the first time a study of the phenomenology of the Minimal Supersymmetric Standard Model (MSSM) that simultaneously accounts for the DM relic abundance and the observed discrepancy of (g − 2)μ, that includes all DM direct detection (DMDD) and LHC limits, and that constrains the model-parameter space to models that are minimally fine-tuned
Instead of exploring the full MSSM with 105 free parameters, we focus on the phenomenological MSSM [67], which has 19 free parameters whose boundary conditions are given at the SUSY scale of O(1 TeV)
Summary
The Large Hadron Collider (LHC) has been searching for over a decade for signs of physics that originate from beyond-the-Standard-Model (BSM) scenarios, including searches for signals that originate from supersymmetric (SUSY) particle production. There is a long-standing discrepancy between the experimental result [10,11,12] and the SM prediction for the muon anomalous magnetic moment. It is clear that for a rich model such as the MSSM, the interplay between the various experimental results is of crucial importance In this context, several studies have been performed to study a subset of these constraints. In this work we perform for the first time a study of the phenomenology of the MSSM that simultaneously accounts for the DM relic abundance and the observed discrepancy of (g − 2)μ, that includes all DMDD and LHC limits, and that constrains the model-parameter space to models that are minimally fine-tuned.
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