A global fit of the MSSM with GAMBIT
Abstract
We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological MSSM fits, by adding more and newer experimental analyses, improving the accuracy and detail of theoretical predictions, including dominant uncertainties from the Standard Model, the Galactic dark matter halo and the quark content of the nucleon, and employing novel and highly-efficient statistical sampling methods to scan the parameter space. We find regions of the MSSM7 that exhibit co-annihilation of neutralinos with charginos, stops and sbottoms, as well as models that undergo resonant annihilation via both light and heavy Higgs funnels. We find high-likelihood models with light charginos, stops and sbottoms that have the potential to be within the future reach of the LHC. Large parts of our preferred parameter regions will also be accessible to the next generation of direct and indirect dark matter searches, making prospects for discovery in the near future rather good.
Cite
@article{arxiv.1705.07917,
title = {A global fit of the MSSM with GAMBIT},
author = {The GAMBIT Collaboration and Peter Athron and Csaba Balázs and Torsten Bringmann and Andy Buckley and Marcin Chrząszcz and Jan Conrad and Jonathan M. Cornell and Lars A. Dal and Joakim Edsjö and Ben Farmer and Paul Jackson and Abram Krislock and Anders Kvellestad and Farvah Mahmoudi and Gregory D. Martinez and Antje Putze and Are Raklev and Christopher Rogan and Aldo Saavedra and Christopher Savage and Pat Scott and Nicola Serra and Christoph Weniger and Martin White},
journal= {arXiv preprint arXiv:1705.07917},
year = {2020}
}
Comments
31 pages, 14 figures; v2 matches version accepted by EPJC; v3 has corrected link to supplementary data on Zenodo