Search for charged Higgs bosons in e(+)e(-) collisions at energies up to root s=189 GeV

	Search for charged Higgs bosons in e(+)e(-) collisions at energies up to root s=189 GeV
	ALEPH Collaboration
刊名	PHYSICS LETTERS B
	2000
卷号	487 期号:3--4 页码:253-263
关键词	PAIR PRODUCTION PROGRAM
通讯作者	Barate, R (reprint author), LAPP, CNRS, IN2P3, Phys Particules Lab, F-74019 Annecy Le Vieux, France.
英文摘要	The data collected at centre-of-mass energies of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 176.2 pb(-1), are analysed in a search for pair-produced charged Hi,ags bosons H +/-. Three analyses are employed to select the tau(+)7 nu(tau)tau(-)<(nu)over bar>tau, c (s) over bar tau(-)<(nu)over bar>(tau) and c (s) over bar s (c) over bar final states. No evidence for a signal is found. Upper limits are set on the production cross section as a function of the branching fraction B(H+--> tau(+)nu(tau)) and of the mass m(H+/-), assuming that the sum of the branching ratios is equal to one. In the framework of a two-Higgs-doublet model, charged Higgs bosons with masses below 65.4 GeV/c(2) are excluded at 95% confidence level independently of the decay mode. (C) 2000 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:000089046600006
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212066]
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. Search for charged Higgs bosons in e(+)e(-) collisions at energies up to root s=189 GeV[J]. PHYSICS LETTERS B,2000,487(3--4):253-263.
APA	ALEPH Collaboration.(2000).Search for charged Higgs bosons in e(+)e(-) collisions at energies up to root s=189 GeV.PHYSICS LETTERS B,487(3--4),253-263.
MLA	ALEPH Collaboration."Search for charged Higgs bosons in e(+)e(-) collisions at energies up to root s=189 GeV".PHYSICS LETTERS B 487.3--4(2000):253-263.