Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP
ALEPH Collaboration; DELPHI Collaboration; OPAL Collaboration; LEP Electroweak Working Grp
刊名PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
2013
卷号532期号:4页码:119-244
关键词OF-MASS ENERGIES TOP-QUARK MASS CARLO EVENT GENERATOR HADRONIC Z-DECAYS INVARIANT YFS EXPONENTIATION ANOMALOUS MAGNETIC-MOMENT (UN)STABLE W+W-PRODUCTION FERMION-LOOP SCHEME COLOR DIPOLE MODEL LEADING ORDER QCD
学科分类Physics
DOI10.1016/j.physrep.2013.07.004
通讯作者Schael, S (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
英文摘要Electroweak measurements performed with data taken at the electron positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb(-1) collected by the four LEP experiments ALEPH, DELPHI, 13 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant WW and ZZ production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose Einstein correlations between the two W decay systems arising in WW production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, m(w) and Gamma(w), the branching fraction of W decays to hadrons, B(W -> had), and the trilinear gauge-boson self-couplings g(1)(Z), K-gamma and lambda(gamma), are determined to be: m(w) = 80.376 +/- 0.033 GeV Gamma(w) = 2.195 +/- 0.083 GeV B(W -> had) = 67.41 +/- 0.27% g(1)(Z) = 0.984(-0.020)(+0.018) K-gamma - 0.982 +/- 0.042 lambda(gamma) = 0.022 +/- 0.019. (C) 2013 Elsevier B.V. All rights reserved.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000328723800001
引用统计
被引频次:116[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/311005/213646
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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ALEPH Collaboration,DELPHI Collaboration,OPAL Collaboration,et al. Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,2013,532(4):119-244.
APA ALEPH Collaboration,DELPHI Collaboration,OPAL Collaboration,&LEP Electroweak Working Grp.(2013).Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,532(4),119-244.
MLA ALEPH Collaboration,et al."Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP".PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS 532.4(2013):119-244.
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