Measurement of W-pair production in e(+)e(-) collisions at 183 GeV
ALEPH Collaboration
刊名PHYSICS LETTERS B
1999
卷号453期号:1-2页码:#REF!
学科分类Physics
DOI10.1016/S0370-2693(99)00304-4
通讯作者Barate, R (reprint author), CNRS, LAPP, IN2P3, F-74019 Annecy Le Vieux, France.
文章类型Article
英文摘要The production of W+W- pairs is analysed in a data sample collected by ALEPH at a mean centre-of-mass energy of 182.7 GeV, corresponding to an integrated luminosity of 57 pb(-1). Cross sections are given for different topologies of W decays into leptons or hadrons. Under Standard Model assumptions for the W-pair production and decay, the W-pair cross section is measured to be 15.57 +/- 0.62 (stat.) +/- 0.29 (syst.) ph. Using also the W-pair data samples collected by ALEPH at lower centre-of-mass energies, the decay branching ratio of the W boson into hadrons is measured to be B(W --> hadrons) = 68.93 +/- 1.21 (stat.) +/- 0.51 (syst.)%, allowing a determination of the CKM matrix element /V-cs/ = 1.043 +/- 0.058 (stat.) +/- 0.026 (syst.). The agreement of the cross sections with the Standard Model prediction allows a limit to be set on the W decay rate to undetectable final states. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
WOS记录号WOS:000080246100013
引用统计
被引频次:22[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/311005/226196
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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ALEPH Collaboration. Measurement of W-pair production in e(+)e(-) collisions at 183 GeV[J]. PHYSICS LETTERS B,1999,453(1-2):#REF!.
APA ALEPH Collaboration.(1999).Measurement of W-pair production in e(+)e(-) collisions at 183 GeV.PHYSICS LETTERS B,453(1-2),#REF!.
MLA ALEPH Collaboration."Measurement of W-pair production in e(+)e(-) collisions at 183 GeV".PHYSICS LETTERS B 453.1-2(1999):#REF!.
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