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Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at root s=7 TeV in the ATLAS detector
ATLAS Collaboration
2015
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
卷号2015期号:6页码:100
文章类型Article
摘要Various differential cross-sections are measured in top-quark pair (t (t) over bar) events produced in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV at the LHC with the ATLAS detector. These differential cross-sections are presented in a data set corresponding to an integrated luminosity of 4.6 fb(-1). The differential cross-sections are presented in terms of kinematic variables, such as momentum, rapidity and invariant mass, of a top-quark proxy referred to as the pseudo-top-quark as well as the pseudo-top-quark pair system. The dependence of the measurement on theoretical models is minimal. The measurements are performed on tt events in the lepton+jets channel, requiring exactly one charged lepton and at least four jets with at least two of them tagged as originating from a b-quark. The hadronic and leptonic pseudo-top-quarks are defined via the leptonic or hadronic decay mode of the W boson produced by the top-quark decay in events with a single charged lepton. Differential cross-section measurements of the pseudo-top-quark variables are compared with several Monte Carlo models that implement next-to-leading order or leading-order multi-leg matrix-element calculations.
关键词Hadron-Hadron Scattering Top physics
学科领域Physics
DOI10.1007/JHEP06(2015)100
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000356797600001
引用统计
被引频次:17[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/311005/228399
专题实验物理中心
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ATLAS Collaboration. Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at root s=7 TeV in the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015,2015(6):100.
APA ATLAS Collaboration.(2015).Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at root s=7 TeV in the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS,2015(6),100.
MLA ATLAS Collaboration."Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at root s=7 TeV in the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS 2015.6(2015):100.
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