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Measurement of the t(t)over-bar production cross section in pp collisions at 7 TeV in lepton plus jets events using b-quark jet identification
CMS Collaboration
2011
发表期刊PHYSICAL REVIEW D
卷号84期号:9
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A new measurement of the inclusive production cross section for pp -> t (t) over bar is performed at a center-of-mass energy of 7 TeV using data collected by the CMS experiment at the LHC. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb(-1), and is based on the final state with one isolated, high transverse momentum muon or electron, missing transverse energy, and hadronic jets. The t (t) over bar content of the selected events is enhanced by requiring the presence of at least one jet consistent with b-quark hadronization. The measured cross section is 150 +/- 9(stat) +/- 17(syst) +/- 6(lumi) pb and is in agreement with higher-order QCD calculations. The combination of this measurement with a previous CMS result based on dileptons gives 154 +/- 17(stat + syst) +/- 6(lumi) pb.
关键词TOP-QUARK
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.84.092004
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000297124000003
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被引频次:48[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/311005/213137
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the t(t)over-bar production cross section in pp collisions at 7 TeV in lepton plus jets events using b-quark jet identification[J]. PHYSICAL REVIEW D,2011,84(9).
APA CMS Collaboration.(2011).Measurement of the t(t)over-bar production cross section in pp collisions at 7 TeV in lepton plus jets events using b-quark jet identification.PHYSICAL REVIEW D,84(9).
MLA CMS Collaboration."Measurement of the t(t)over-bar production cross section in pp collisions at 7 TeV in lepton plus jets events using b-quark jet identification".PHYSICAL REVIEW D 84.9(2011).
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