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Measurement of the W boson mass and width in e(+)e(-) collisions at LEP
ALEPH Collaboration
2006
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号47期号:2页码:309-335
通讯作者Schael, S (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
摘要The mass of the W boson is determined from the direct reconstruction of W decays in WW -> qqqq and WW -> lvqq events in e(+)e(-) collisions at LEP. The data sample corresponds to an integrated luminosity of 683 pb(-1) collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the qqqq channel. The combined result from all channels is mw = 80.440 +/- 0.043(stat.) +/- 0.024(syst.) +/- 0.009(FSI) +/- 0.009 (LEP)GeV/c(2), where PSI represents the possible effects of final state interactions in the qqqq channel and LEP indicates the uncertainty in the beam energy. From two-parameter fits to the W mass and width, the W width is found to be Gamma(W) = 2.14 +/- 0.09(stat.) +/- 0.04(syst.) +/- 0.05 (FSI) +/- 0.01 (LEP)GeV.
关键词PHYSICS EVENT GENERATION PAIR PRODUCTION MONTE-CARLO NONFACTORIZABLE CORRECTIONS EINSTEIN CORRELATIONS RADIATIVE-CORRECTIONS RAPIDITY GAPS FINAL-STATES ENERGIES RECONSTRUCTION
学科领域Physics
DOI10.1140/epjc/s2006-02576-8
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000241559800003
引用统计
被引频次:29[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/311005/212733
专题实验物理中心
作者单位中国科学院高能物理研究所
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ALEPH Collaboration. Measurement of the W boson mass and width in e(+)e(-) collisions at LEP[J]. EUROPEAN PHYSICAL JOURNAL C,2006,47(2):309-335.
APA ALEPH Collaboration.(2006).Measurement of the W boson mass and width in e(+)e(-) collisions at LEP.EUROPEAN PHYSICAL JOURNAL C,47(2),309-335.
MLA ALEPH Collaboration."Measurement of the W boson mass and width in e(+)e(-) collisions at LEP".EUROPEAN PHYSICAL JOURNAL C 47.2(2006):309-335.
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