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arXiv · 1612.02296

Status of CMSSM in light of current LHC Run-2 and LUX data

Chengcheng Han·Ken-ichi Hikasa·Lei Wu·Jin Min Yang·Yang Zhang
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Abstract

Motivated by the latest results of the LHC Run-2 and LUX experiments, we examine the status of the constrained minimal supersymmetric standard model (CMSSM) by performing a global fit. We construct a likelihood function including the electroweak precision observables, $B$-physics measurements, LHC Run-1 and -2 data of SUSY direct searches, Planck observation of the dark matter relic density and the combined LUX Run-3 and -4 detection limits. Based on the profile likelihood functions of 1 billion samples, we obtain the following observations: (i) The stau coannihilation region has been mostly excluded by the latest LHC Run-2 data; (ii) The focus point region has been largely covered by the LUX-2016 limits while the $A$-funnel region has been severely restricted by flavor observables like $B_s \to μ^+μ^-$. The remaining parts of both regions will be totally covered by the future LZ dark matter experiment; (iii) The masses of the stop, the lightest neutralino and the gluino have been pushed up to 1033 GeV, 449 GeV and 2285 GeV, respectively.

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Chengcheng Han, Ken-ichi Hikasa, Lei Wu, Jin Min Yang, Yang Zhang. 2017-04-13. Status of CMSSM in light of current LHC Run-2 and LUX data. https://doi.org/10.1016/j.physletb.2017.04.026

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