Updated global fits of the cMSSM including the latest LHC SUSY and Higgs searches and XENON100 data

TL;DR

This paper updates the global fits of the constrained Minimal Supersymmetric Standard Model (cMSSM) incorporating recent LHC, Higgs, and XENON100 data, highlighting how combined constraints significantly restrict the model's parameter space.

Contribution

It provides the first comprehensive analysis of cMSSM parameter space using the latest collider and direct detection data, including astrophysical and hadronic uncertainties, with both Bayesian and Frequentist methods.

Findings

LHC 2011 data rules out low-mass cMSSM regions.

XENON100 data constrains high-mass regions like Focus-Point.

Muon anomalous magnetic moment data strongly disfavors large SUSY masses.

Abstract

We present new global fits of the cMSSM, including LHC 1/fb integrated luminosity SUSY exclusion limits, recent LHC 5/fb constraints on the mass of the Higgs boson and XENON100 direct detection data. Our analysis fully takes into account astrophysical and hadronic uncertainties that enter the analysis when translating direct detection limits into constraints on the cMSSM parameter space. We provide results for both a Bayesian and a Frequentist statistical analysis. We find that LHC 2011 constraints in combination with XENON100 data can rule out a significant portion of the cMSSM parameter space. Our results further emphasise the complementarity of collider experiments and direct detection searches in constraining extensions of Standard Model physics. The LHC 2011 exclusion limit strongly impacts on low-mass regions of cMSSM parameter space, such as the stau co-annihilation region, while direct detection data can rule out regions of high SUSY masses, such as the Focus-Point region, which is unreachable for the LHC in the near future. We show that, in addition to XENON100 data, the experimental constraint on the anomalous magnetic moment of the muon plays a dominant role in disfavouring large scalar and gaugino masses. We find that, should the LHC 2011 excess hinting towards a Higgs boson at 126 GeV be confirmed, currently favoured regions of the cMSSM parameter space will be robustly ruled out from both a Bayesian and a profile likelihood statistical perspective.