Measurement of the cross section of W-boson pair production at LEP
L3 Collaboration
刊名PHYSICS LETTERS B
2004
卷号600期号:1-2页码:#REF!
学科分类Physics
DOI10.1016/j.physletb.2004.08.060
通讯作者Achard, P (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
文章类型Article
英文摘要The cross section of W-boson pair-production is measured with the L3 detector at LEP. In a data sample corresponding to a total luminosity of 629.4 pb(-1), collected at centre-of-mass energies ranging from 189 to 209 GeV, 9834 four-fermion events with W bosons decaying into hadrons or leptons are selected. The total cross section is measured with a precision of 1.4% and agrees with the Standard Model expectation. Assuming charged-lepton universality, the branching fraction for hadronic W-boson decays is measured to be: Br(W --> hadrons) = 67.50 +/- 0.42(stat.) +/- 0.30(syst.)%, in agreement with the Standard Model. Differential cross sections as a function of the W- production angle are also measured for the semi-leptonic channels qqev and qqmuv. (C) 2004 Published by Elsevier B.V.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
WOS记录号WOS:000224496300004
引用统计
被引频次:31[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/311005/225553
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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L3 Collaboration. Measurement of the cross section of W-boson pair production at LEP[J]. PHYSICS LETTERS B,2004,600(1-2):#REF!.
APA L3 Collaboration.(2004).Measurement of the cross section of W-boson pair production at LEP.PHYSICS LETTERS B,600(1-2),#REF!.
MLA L3 Collaboration."Measurement of the cross section of W-boson pair production at LEP".PHYSICS LETTERS B 600.1-2(2004):#REF!.
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