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Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at root s=7TeV
CMS Collaboration
2014
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号74期号:8
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb(-1). Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t (t) over bar production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.
关键词PARTON DISTRIBUTIONS LHC
学科领域Physics
DOI10.1140/epjc/s10052-014-3014-0
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000340824000001
引用统计
被引频次:4[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/311005/213759
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
推荐引用方式
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CMS Collaboration. Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at root s=7TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(8).
APA CMS Collaboration.(2014).Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at root s=7TeV.EUROPEAN PHYSICAL JOURNAL C,74(8).
MLA CMS Collaboration."Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at root s=7TeV".EUROPEAN PHYSICAL JOURNAL C 74.8(2014).
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