Measurement of W polarisation at LEP

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	Measurement of W polarisation at LEP
刊名	PHYSICS LETTERS B
	2003
卷号	557 期号:3--4 页码:147-156
关键词	(UN)STABLE W+W-PRODUCTION MONTE-CARLO PROGRAM L3 EXPERIMENT ENERGIES DETECTOR EXPONENTIATION GENERATOR
通讯作者	Achard, P (reprint author), Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India.
英文摘要	The three different helicity states of W bosons produced in the reaction e(+)e(-) --> W+W- --> lvqq' at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies roots = 183-209 GeV are used to measure the polarisation of W bosons, and its dependence on the W boson production angle. The fraction of longitudinally polarised W bosons is measured to be 0.218 +/- 0.027 +/- 0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation. (C) 2003 Published by Elsevier Science B.V.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000181828900003
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212273]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	. Measurement of W polarisation at LEP[J]. PHYSICS LETTERS B,2003,557(3--4):147-156.
APA	(2003).Measurement of W polarisation at LEP.PHYSICS LETTERS B,557(3--4),147-156.
MLA	"Measurement of W polarisation at LEP".PHYSICS LETTERS B 557.3--4(2003):147-156.