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Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at root s=8 TeV with the ATLAS detector
ATLAS Collaboration
2016
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
卷号2016期号:8页码:9
文章类型Article
摘要This paper presents a measurement of the double-differential cross section for the Drell-Yan Z/gamma* -> l(+)l(-) and photon-induced gamma gamma -> l(+)l(-) processes where l is an electron or muon. The measurement is performed for invariant masses of the lepton pairs, m(ll), between 116 GeV and 1500 GeV using a sample of 20.3 fb(-1) of pp collisions data at centre-of-mass energy of root s = 8TeV collected by the ATLAS detector at the LHC in 2012. The data are presented double differentially in invariant mass and absolute dilepton rapidity as well as in invariant mass and absolute pseudorapidity separation of the lepton pair. The single-differential cross section as a function of m(ll) is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1% is achieved at low m(ll). A comparison to next-to-next-to-leading order perturbative QCD predictions using several recent parton distribution functions and including next-to-leading order electroweak effects indicates the potential of the data to constrain parton distribution functions. In particular, a large impact of the data on the photon PDF is demonstrated.
关键词Hadron-Hadron scattering (experiments)
DOI10.1007/jhep08(2016)009
关键词[WOS]W LEPTON ASYMMETRY ; PARTON DISTRIBUTIONS ; HADRON COLLIDERS ; PAIR PRODUCTION ; PLUS PLUS ; LHC ; QCD ; EW
语种英语
WOS记录号WOS:000391750700001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260936
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS Collaboration. Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at root s=8 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016,2016(8):9.
APA ATLAS Collaboration.(2016).Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at root s=8 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS,2016(8),9.
MLA ATLAS Collaboration."Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at root s=8 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS 2016.8(2016):9.
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