Search

We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ∼1/fb of LHC data recorded by ATLAS and CMS and ∼0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables. We also include the constraints imposed by the cosmological dark matter density and the XENON100 search for spin-independent dark matter scattering. The LHC data set includes ATLAS and CMS searches for jets + [InlineEquation not available: see fulltext.] events and for the heavier MSSM Higgs bosons, and the upper limits on BR( B→ μ μ) from LHCb and CMS. The absences of jets + [InlineEquation not available: see fulltext.] signals in the LHC data favour heavier mass spectra than in our previous analyses of the CMSSM and NUHM1, which may be reconciled with ( g−2) if tan β∼40, a possibility that is, however, under pressure from heavy Higgs searches and the upper limits on BR( B→ μ μ). As a result, the p-value for the CMSSM fit is reduced to ∼15(38)%, and that for the NUHM1 to ∼16(38)%, to be compared with ∼9(49)% for the Standard Model limit of the CMSSM for the same set of observables (dropping ( g−2)), ignoring the dark matter relic density. We discuss the sensitivities of the fits to the ( g−2) and BR( b→ sγ) constraints, contrasting fits with and without the ( g−2) constraint, and combining the theoretical and experimental errors for BR( b→ sγ) linearly or in quadrature. We present predictions for $m_{\tilde{g}}$, BR( B→ μ μ), M and M, and update predictions for spin-independent dark matter scattering, incorporating the uncertainty in the π-nucleon σ term Σ. Finally, we present predictions based on our fits for the likely thresholds for sparticle pair production in e e collisions in the CMSSM and NUHM1. [ABSTRACT FROM AUTHOR]

The CMS and ATLAS Collaborations have recently published the results of initial direct LHC searches for supersymmetry analyzing ∼35/pb of data taken at 7 TeV in the centre of mass. We incorporate these results into a frequentist analysis of the probable ranges of parameters of simple versions of the minimal supersymmetric extension of the Standard Model (MSSM), namely the constrained MSSM (CMSSM), a model with common non-universal Higgs masses (NUHM1), the very constrained MSSM (VCMSSM) and minimal supergravity (mSUGRA). We present updated predictions for the gluino mass, $m_{\tilde{g}}$, the light-Higgs boson mass, M, BR( B→ μ μ) and the spin-independent dark matter scattering cross section, $\sigma^{\mathrm{SI}}_{p}$. The CMS and ATLAS data make inroads into the CMSSM, NUHM1 and VCMSSM (but not mSUGRA) parameter spaces, thereby strengthening previous lower limits on sparticle masses and upper limits on $\sigma^{\mathrm{SI}}_{p}$ in the CMSSM and VCMSSM. The favoured ranges of BR( B→ μ μ) in the CMSSM, VCMSSM and mSUGRA are close to the Standard Model, but considerably larger values of BR( B→ μ μ) are possible in the NUHM1. Applying the CMS and ATLAS constraints improves the consistency of the model predictions for M with the LEP exclusion limits. [ABSTRACT FROM AUTHOR]