Search for R-parity breaking sneutrino exchange at LEP

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	Search for R-parity breaking sneutrino exchange at LEP
刊名	PHYSICS LETTERS B
	1997
卷号	414 期号:3--4 页码:373-381
关键词	FERMION PAIR PRODUCTION STANDARD MODEL L3 EXPERIMENT REALISTIC APPROACH BHABHA SCATTERING PARTICLE PHYSICS E+E ANNIHILATION QED CORRECTIONS SUPERSYMMETRY
通讯作者	Acciarri, M (reprint author), Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany.
英文摘要	We report on a search for R-parity breaking effects due to supersymmetric tau-sneutrino exchange in the reactions e(+)e(-) --> e(+)e(-) and e(+)e(-) --> mu(+)mu(-) at centre-of-mass energies from 91 GeV to 172 GeV, using the L3 detector at LEP. No evidence for deviations from the Standard Model expectations of the measured cross sections and forward-backward asymmetries for these reactions is found. Upper Limits for the couplings lambda(131) and lambda(232), for sneutrino masses up to m(<(nu)over bar>tau) less than or equal to 190GeV are determined from an analysis of the expected effects due to tau sneutrino exchange. (C) 1997 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:000071063500019
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/211898]
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	. Search for R-parity breaking sneutrino exchange at LEP[J]. PHYSICS LETTERS B,1997,414(3--4):373-381.
APA	(1997).Search for R-parity breaking sneutrino exchange at LEP.PHYSICS LETTERS B,414(3--4),373-381.
MLA	"Search for R-parity breaking sneutrino exchange at LEP".PHYSICS LETTERS B 414.3--4(1997):373-381.