Back to Search
Start Over
Implications of initial LHC searches for supersymmetry.
- 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