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Measurement of the Z/gamma* plus b-jet cross section in pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号6
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The production of b jets in association with a Z/gamma* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7TeV and recorded by the CMS detector. The inclusive cross section for Z/gamma* + b-jet production is measured in a sample corresponding to an integrated luminosity of 2.2 fb(-1). The Z/gamma* + b-jet cross section with Z/gamma* -> ll (where ll = ee or mu mu) for events with the invariant mass 60 < M-ll < 120 GeV, at least one b jet at the hadron level with p(T) > 25 GeV and vertical bar eta vertical bar < 2.1, and a separation between the leptons and the jets of Delta R > 0.5 is found to be 5.84 +/- 0.08 (stat.) +/- 0.72 (syst.)(-0.55)(+0.25) (theory) pb. The kinematic properties of the events are also studied and found to be in agreement with the predictions made by the MADGRAPH event generator with the parton shower and the hadronisation performed by PYTHIA.
学科领域Physics
DOI10.1007/JHEP06(2012)126
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000306418300035
引用统计
被引频次:7[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/311005/213287
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 Z/gamma* plus b-jet cross section in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(6).
APA CMS Collaboration.(2012).Measurement of the Z/gamma* plus b-jet cross section in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(6).
MLA CMS Collaboration."Measurement of the Z/gamma* plus b-jet cross section in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .6(2012).
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