Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector

	Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector
	ATLAS collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2014
期号	6
关键词	PARTON DISTRIBUTIONS PAIR PRODUCTION COLLISIONS LHC QCD
通讯作者	Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France.
英文摘要	The differential cross section for the process Z/gamma* -> ll (l = e, mu) as a function of dilepton invariant mass is measured in pp collisions at root s = 7 TeV at the LHC using the ATLAS detector. The measurement is performed in the e and mu channels for invariant masses between 26 GeV and 66 GeV using an integrated luminosity of 1.6 fb(-1) collected in 2011 and these measurements are combined. The analysis is extended to invariant masses as low as 12 GeV in the muon channel using 35 pb(-1) of data collected in 2010. The cross sections are determined within fiducial acceptance regions and corrections to extrapolate the measurements to the full kinematic range are provided. Next-to-next-to-leading-order QCD predictions provide a significantly better description of the results than next-to-leading-order QCD calculations, unless the latter are matched to a parton shower calculation.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000338528300001
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213734]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	ATLAS collaboration. Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(6).
APA	ATLAS collaboration.(2014).Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(6).
MLA	ATLAS collaboration."Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .6(2014).