Implications of initial LHC searches for supersymmetry

被引:52
|
作者
Buchmueller, O. [1 ]
Cavanaugh, R. [2 ,3 ]
Colling, D. [1 ]
De Roeck, A. [4 ,5 ]
Dolan, M. J. [6 ]
Ellis, J. R. [4 ,7 ]
Flaecher, H. [8 ]
Heinemeyer, S. [9 ]
Isidori, G. [10 ]
Olive, K. [11 ]
Rogerson, S. [1 ]
Ronga, F. [12 ]
Weiglein, G. [13 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, High Energy Phys Grp, London SW7 2AZ, England
[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[3] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[4] CERN, CH-1211 Geneva 23, Switzerland
[5] Univ Antwerp, B-2610 Antwerp, Belgium
[6] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
[7] Kings Coll London, Dept Phys, Theoret Phys & Cosmol Grp, London WC2R 2LS, England
[8] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
[9] Inst Fis Cantabria CSIC UC, Santander 39005, Spain
[10] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[11] Univ Minnesota, William I Fine Theoret Phys Inst, Minneapolis, MN 55455 USA
[12] ETH, Inst Particle Phys, CH-8093 Zurich, Switzerland
[13] DESY, D-22607 Hamburg, Germany
来源
EUROPEAN PHYSICAL JOURNAL C | 2011年 / 71卷 / 05期
基金
美国国家科学基金会;
关键词
NEUTRALINO DARK-MATTER; LIGHTEST HIGGS-BOSON; ONE-LOOP CORRECTIONS; RELIC DENSITY; RADIATIVE-CORRECTIONS; MINIMAL SUPERGRAVITY; STANDARD MODEL; MASSES; PROGRAM; MSSM;
D O I
10.1140/epjc/s10052-011-1634-1
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The CMS and ATLAS Collaborations have recently published the results of initial direct LHC searches for supersymmetry analyzing similar to 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((g) over tilde), the light-Higgs boson mass, M-h, BR(B-s -> mu(+)mu(-)) and the spin-independent dark matter scattering cross section, sigma(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(SI)(p) in the CMSSM and VCMSSM. The favoured ranges of BR(B-s -> mu(+)mu(-)) in the CMSSM, VCMSSM and mSUGRA are close to the Standard Model, but considerably larger values of BR(B-s -> mu(+)mu(-)) are possible in the NUHM1. Applying the CMS and ATLAS constraints improves the consistency of the model predictions for M-h with the LEP exclusion limits.
引用
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页码:1 / 13
页数:13
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