paper

Search for Charged Higgs Bosons in e+e- Collisions at \sqrt{s} = 189 GeV

arXiv:hep-ex/9909044 · doi:10.1016/S0370-2693(99)01100-4

Abstract

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.4 pb^-1. Higgs decays into a charm and a strange quark or into a tau lepton and its associated neutrino are considered. The observed events are consistent with the expectations from Standard Model background processes. A lower limit of 65.5 GeV on the charged Higgs mass is derived at 95 % confidence level, independent of the decay branching ratio Br(H^{+/-} -> tau nu).

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