Measurement of the Tau Polarisation at LEP

	Measurement of the Tau Polarisation at LEP
	ALEPH Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2001
卷号	20 期号:3 页码:401-430
关键词	FERMION PAIR PRODUCTION MONTE-CARLO BHABHA SCATTERING RADIATIVE-CORRECTIONS PHOTON CORRECTIONS EVENT GENERATION QED CORRECTIONS HIGH-ENERGIES Z-PEAK DECAYS
通讯作者	Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
英文摘要	The polarisation of tau's produced in Z decay is measured using 160 pb(-1) of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters A(e) = 0.1504 +/- 0.0068 and A(tau) = 0.1451 +/- 0.0059 which are consistent with the hypothesis of e-tau universality. Assuming universality, the value A(e-tau) = 0.1474 +/- 0.0045 is obtained from which the effective weak mixing angle sin(2) theta (eff)(W) = 0.23147 +/- 0.00057 is derived.
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:000170132000001
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212123]
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 the Tau Polarisation at LEP[J]. EUROPEAN PHYSICAL JOURNAL C,2001,20(3):401-430.
APA	ALEPH Collaboration.(2001).Measurement of the Tau Polarisation at LEP.EUROPEAN PHYSICAL JOURNAL C,20(3),401-430.
MLA	ALEPH Collaboration."Measurement of the Tau Polarisation at LEP".EUROPEAN PHYSICAL JOURNAL C 20.3(2001):401-430.