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MEASUREMENT OF CHARGE ASYMMETRY IN HADRONIC Z DECAYS

文献类型：期刊论文

作者ALEPH Collaboration
刊名PHYSICS LETTERS B
出版日期1991
卷号259期号:3页码:377-388
关键词E+E-ANNIHILATION QUARK JETS SCATTERING EVENTS PETRA LEP
通讯作者Decamp, D (reprint author), CNRS, IN2P3, Lab Phys Particules LAPP, F-74019 Annecy Le Vieux, FRANCE.
英文摘要A significant charge asymmetry is observed in the hadronic Z decays collected with the ALEPH detector at LEP. The asymmetry expressed in terms of the difference in momentum weighted charges in the two event hemispheres is measured to be - = - 0.0084 +/- 0.0015 (stat.) +/- 0.0004 (exp. sys.). In the framework of the standard model this can be interpreted as a measurement of the effective electroweak mixing angle, sin2-theta-w(M(z)2) = 0.2300 +/- 0.0034 (stat.) +/- 0.0010 (exp. sys.) +/- 0.0038 (theor. sys.) or of the ratio of the vector to axial-vector coupling constants of the electron, g(v(e))/g(A(e)) = + 0.073 +/- 0.024.
学科主题Physics
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:A1991FK64800025
公开日期2016-02-26
源URL[http://ir.ihep.ac.cn/handle/311005/213868]  
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 CHARGE ASYMMETRY IN HADRONIC Z DECAYS[J]. PHYSICS LETTERS B,1991,259(3):377-388.
APA ALEPH Collaboration.(1991).MEASUREMENT OF CHARGE ASYMMETRY IN HADRONIC Z DECAYS.PHYSICS LETTERS B,259(3),377-388.
MLA ALEPH Collaboration."MEASUREMENT OF CHARGE ASYMMETRY IN HADRONIC Z DECAYS".PHYSICS LETTERS B 259.3(1991):377-388.

入库方式： OAI收割

来源：高能物理研究所

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