Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at root s=8 TeV
CMS Collaboration
刊名PHYSICAL REVIEW D
2015
卷号91期号:5页码:52018
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.91.052018
文章类型Article
英文摘要An inclusive search for supersymmetry in events with at least one b-tagged jet is performed using proton-proton collision data collected by the CMS experiment in 2012 at a center-of-mass energy of 8 TeV. The data set size corresponds to an integrated luminosity of 19.3 fb(-1). The two-dimensional distribution of the razor variables R-2 and M-R is studied in events with and without leptons. The data are found to be consistent with the expected background, which is modeled with an empirical function. Exclusion limits on supersymmetric particle masses at a 95% confidence level are derived in several simplified supersymmetric scenarios for several choices of the branching fractions. By combining the likelihoods of a search in events without leptons and a search that requires a single lepton (electron or muon), an improved bound on the top-squark mass is obtained. Assuming the lightest supersymmetric particle to be stable and weakly interacting, and to have a mass of 100 GeV, the branching-fraction-dependent (-independent) production of gluinos is excluded for gluino masses up to 1310 (1175) GeV. The corresponding limit for top-squark pair production is 730 (645) GeV.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000351573100001
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228370
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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CMS Collaboration. Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at root s=8 TeV[J]. PHYSICAL REVIEW D,2015,91(5):52018.
APA CMS Collaboration.(2015).Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at root s=8 TeV.PHYSICAL REVIEW D,91(5),52018.
MLA CMS Collaboration."Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at root s=8 TeV".PHYSICAL REVIEW D 91.5(2015):52018.
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