Single charged-Higgs-boson production in Z decays.

Abstract

The possibility that a charged Higgs boson with a mass in excess of half the mass of the $Z$ and a significant branching fraction into $\ensuremath{\tau}$ leptons may be observable in high statistics experiments at the CERN ${e}^{+}{e}^{\ensuremath{-}}$ collider LEP is examined. In the class of models we study, the potential search range can reach masses as high as 80 GeV given an event sample of ${10}^{7}$ $Z'\mathrm{s}$.