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 题名  Search for charged Higgs bosons in e(+)e(-) collisions at centre-of-mass energies from 130 to 172 GeV
 作者  ALEPH Collaboration
 来源  
 单位  中国科学院高能物理研究所
 出版日期  1998
 关键词  Physics,Physics, Multidisciplinary
 摘要  The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb(-1), are analysed In a search for pair-produced charged Higgs bosons H+/-. Three analyses are employed to select the tau(+)nu(tau)tau(-)<(nu)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. Mass limits are set as a function of the branching fraction B(tau nu) for H+/--->tau nu. Charged Higgs bosons with masses below 52 GeV/c(2) are excluded at 95% C.L. independently of B(tau nu) thus significantly improving on existing limits. (C) 1998 Published by Elsevier Science B.V.
 内容类型  期刊论文
 URI标识  http://202.38.128.226/handle/311005/211904