中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV

文献类型:期刊论文

作者ALEPH Collaboration
刊名EUROPEAN PHYSICAL JOURNAL C
出版日期2001
卷号21期号:3页码:423-441
关键词WW-GAMMA COUPLINGS QED RADIATIVE-CORRECTIONS UNIVERSAL MONTE-CARLO DECAY LIBRARY TAUOLA PAIR CROSS-SECTION ROOT S=161 GEV E(+)E(-) COLLISIONS W+W-PRODUCTION OPTIMAL OBSERVABLES EVENT GENERATION
通讯作者Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
英文摘要The triple gauge-boson couplings involving the W are determined using data samples collected with the ALEPH detector at mean centre-of-mass energies of 183 GeV and 189 GeV, corresponding to integrated luminosities of 57 pb(-1) and 174 pb(-1), respectively. The couplings, g(1)(Z), kappa (gamma) and lambda (gamma) are measured using W-pair events, single-W production and single-gamma production. Each coupling is measured individually with the other two couplings fixed at their standard model value. Including ALEPH results from lower energies, the 95% confidence level intervals for the deviation to the standard model are -0.087 < Deltag(1)(Z) < 0.141, -0.200 < Delta kappa (gamma) < 0.258, and - 0.062 < lambda (gamma) < 0.147. Fits are also presented where two or all three couplings are allowed to vary. In addition, W-pair events are used to set limits on the C- or P-violating couplings g(4)(V), g(5)(V), <()over tilde>(V) and <()over tilde>(V), where Vdenotes either gamma or Z. No deviations from the standard model expectations are observed.
学科主题Physics
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000171329100004
公开日期2016-02-25
源URL[http://ir.ihep.ac.cn/handle/311005/212140]  
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. Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV[J]. EUROPEAN PHYSICAL JOURNAL C,2001,21(3):423-441.
APA ALEPH Collaboration.(2001).Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV.EUROPEAN PHYSICAL JOURNAL C,21(3),423-441.
MLA ALEPH Collaboration."Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV".EUROPEAN PHYSICAL JOURNAL C 21.3(2001):423-441.

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来源:高能物理研究所

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