Measurement of t(t)over-bar production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at root s=8TeV
CMS Collaboration
刊名EUROPEAN PHYSICAL JOURNAL C
2016
卷号76期号:7
DOI10.1140/epjc/s10052-016-4105-x
文章类型Article
英文摘要Jet multiplicity distributions in top quark pair (t (t) over bar) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7 fb(-1). The measurement is performed in the dilepton decay channels (e(+)e(-), mu(+)mu(-), and e(+/-)mu(+/-)). The absolute and normalized differential cross sections for t (t) over bar production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential t (t) over barb and t (t) over barb (b) over bar cross sections are presented for the first time as a function of the kinematic properties of the leading additional b jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. The data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading order calculation.
关键词[WOS]CROSS-SECTION ; LHC
语种英语
WOS记录号WOS:000379709000001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260728
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
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of t(t)over-bar production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at root s=8TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(7).
APA CMS Collaboration.(2016).Measurement of t(t)over-bar production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at root s=8TeV.EUROPEAN PHYSICAL JOURNAL C,76(7).
MLA CMS Collaboration."Measurement of t(t)over-bar production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at root s=8TeV".EUROPEAN PHYSICAL JOURNAL C 76.7(2016).
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