Measurement of differential cross sections and W+/W- cross-section ratios for W boson production in association with jets at root s=8 TeV with the ATLAS detector

doi:10.1007/JHEP05(2018)077

	Measurement of differential cross sections and W+/W- cross-section ratios for W boson production in association with jets at root s=8 TeV with the ATLAS detector
	ATLAS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	5 页码:77
关键词	Hadron-Hadron scattering (experiments)
ISSN号	1029-8479
DOI	10.1007/JHEP05(2018)077
文献子类	Article
英文摘要	This paper presents a measurement of the W boson production cross section and the W+/W- cross-section ratio, both in association with jets, in proton-proton collisions at root s = 8 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is performed in final states containing one electron and missing transverse momentum using data corresponding to an integrated luminosity of 20.2 fb(-1). Differential cross sections for events with at least one or two jets are presented for a range of observables, including jet transverse momenta and rapidities, the scalar sum of transverse momenta of the visible particles and the missing transverse momentum in the event, and the transverse momentum of the W boson. For a subset of the observables, the differential cross sections of positively and negatively charged W bosons are measured separately. In the cross-section ratio of W+/W- the dominant systematic uncertainties cancel out, improving the measurement precision by up to a factor of nine. The observables and ratios selected for this paper provide valuable input for the up quark, down quark, and gluon parton distribution functions of the proton.
WOS关键词	TO-LEADING ORDER ; P(P)OVER-BAR COLLISIONS ; PARTON DISTRIBUTIONS ; TRANSVERSE-MOMENTUM ; HADRON COLLIDERS ; PAIR PRODUCTION ; LHC ; QCD ; RESUMMATION ; EVENTS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000432561800001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285941]
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 differential cross sections and W+/W- cross-section ratios for W boson production in association with jets at root s=8 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(5):77.
APA	ATLAS Collaboration.(2018).Measurement of differential cross sections and W+/W- cross-section ratios for W boson production in association with jets at root s=8 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(5),77.
MLA	ATLAS Collaboration."Measurement of differential cross sections and W+/W- cross-section ratios for W boson production in association with jets at root s=8 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .5(2018):77.