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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Updated global fits of the cMSSM including the latest LHC SUSY and Higgs searches and XENON100 data
Journal of Cosmology and Astroparticle Physics, Volume 2012, No. 3, Year 2012
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Description
We present new global fits of the constrained Minimal Supersymmetric Standard Model (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 126GeV 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. © 2012 IOP Publishing Ltd and Sissa Medialab srl.
Authors & Co-Authors
Strege, C.
United Kingdom, London
Imperial College London
Bertone, Gianfranco
Netherlands, Amsterdam
Universiteit Van Amsterdam
Cerdeño, D. G.
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Spain, Madrid
Universidad Autónoma de Madrid
Fornasa, Mattia
Spain, Granada
Instituto de Astrofísica de Andalucía - Csic
de Austri, Roberto Ruiz
Spain, Paterna
Csic-uv - Instituto de Física Corpuscular
Trotta, Roberto
United Kingdom, London
Imperial College London
South Africa, Muizenberg
African Institute for Mathematical Sciences
Statistics
Citations: 6
Authors: 6
Affiliations: 7
Identifiers
Doi:
10.1088/1475-7516/2012/03/030
e-ISSN:
14757516
Study Approach
Quantitative