Back to Search Start Over

Implications of initial LHC searches for supersymmetry.

Authors :
Buchmueller, O.
Cavanaugh, R.
Colling, D.
Roeck, A.
Dolan, M.
Ellis, J.
Flächer, H.
Heinemeyer, S.
Isidori, G.
Olive, K.
Rogerson, S.
Ronga, F.
Weiglein, G.
Source :
European Physical Journal C -- Particles & Fields. May2011, Vol. 71 Issue 5, p1-13. 13p. 1 Chart, 7 Graphs.
Publication Year :
2011

Abstract

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]

Details

Language :
English
ISSN :
14346044
Volume :
71
Issue :
5
Database :
Academic Search Index
Journal :
European Physical Journal C -- Particles & Fields
Publication Type :
Academic Journal
Accession number :
60279327
Full Text :
https://doi.org/10.1140/epjc/s10052-011-1634-1