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Measurements of inclusive W and Z cross sections in pp collisions at root s=7 TeV
CMS Collaboration
2011
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号1
通讯作者Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要Measurements of inclusive W and Z boson production cross sections in pp collisions at root s = 7 TeV are presented, based on 2 : 9 pb(-1) of data recorded by the CMS detector at the LHC. The measurements, performed in the electron and muon decay channels, are combined to give sigma(pp -> WX) x B (W -> lv) = 9.95 +/- 0.07 (stat.) +/- 0.28 (syst.) +/- 1.09 (lumi.) nb and sigma(pp -> ZX) x B (Z -> l(+)l(-)) = 0.931 +/- 0.026 (stat.) +/- 0.023 (syst.) +/- 0.102 (lumi.) nb, where l stands for either e or mu. Theoretical predictions, calculated at the next-to-next-to-leading order in QCD using recent parton distribution functions, are in agreement with the measured cross sections. Ratios of cross sections, which incur an experimental systematic uncertainty of less than 4%, are also reported.
关键词LHC
学科领域Physics
DOI10.1007/JHEP01(2011)080
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000287937700078
引用统计
被引频次:70[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/311005/213020
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. Measurements of inclusive W and Z cross sections in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(1).
APA CMS Collaboration.(2011).Measurements of inclusive W and Z cross sections in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(1).
MLA CMS Collaboration."Measurements of inclusive W and Z cross sections in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .1(2011).
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