Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP

	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
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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000328723800001
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213646]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.