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Measurement of the Electron Charge Asymmetry in Inclusive W Production in pp Collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊PHYSICAL REVIEW LETTERS
卷号109期号:11
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A measurement of the electron charge asymmetry in inclusive pp -> W + X -> ev + X production at root s = 7 TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated luminosity of 840 pb(-1). The electron charge asymmetry reflects the unequal production of W+ and W- bosons in pp collisions. The electron charge asymmetry is measured in bins of the absolute value of electron pseudorapidity in the range of vertical bar eta vertical bar < 2.4. The asymmetry rises from about 0.1 to 0.2 as a function of the pseudorapidity and is measured with a relative precision better than 7%. This measurement provides new stringent constraints for parton distribution functions.
关键词PARTON DISTRIBUTIONS LHC
学科领域Physics
DOI10.1103/PhysRevLett.109.111806
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000308588200005
引用统计
被引频次:45[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/311005/213327
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the Electron Charge Asymmetry in Inclusive W Production in pp Collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2012,109(11).
APA CMS Collaboration.(2012).Measurement of the Electron Charge Asymmetry in Inclusive W Production in pp Collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,109(11).
MLA CMS Collaboration."Measurement of the Electron Charge Asymmetry in Inclusive W Production in pp Collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 109.11(2012).
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