A global fit of the MSSM with GAMBIT
File(s)
Published version
Author(s)
Type
Journal Article
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.
Date Issued
2017-12-18
Date Acceptance
2017-09-04
Citation
European Physical Journal C: Particles and Fields, 2017, 77 (12)
ISSN
1434-6044
Publisher
Springer Verlag (Germany)
Journal / Book Title
European Physical Journal C: Particles and Fields
Volume
77
Issue
12
Copyright Statement
© The Author(s) 2017. This article is an open access publication
License URL
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
DYNAMICAL SYMMETRY-BREAKING
GAUGE COUPLING UNIFICATION
SUPERSYMMETRIC DARK-MATTER
GRAND UNIFIED THEORIES
HIGGS-BOSON
E(+)E(-) COLLISIONS
PARTICLE PHYSICS
STANDARD MODEL
SOFT TERMS
LHC
Publication Status
Published
Article Number
879