Search for charged Higgs bosons in e+e− collisions at √s=130–172 GeV
1998
Abstract A search is described to detect charged
Higgs bosonsvia the process e + e − →H + H − , using data collected by the OPAL detector at
center-of-
massenergies of 130–172 GeV with a total integrated luminosity of 25 pb −1 . The decay channels are assumed to be H + → q q ′ and H + → τ + ν τ . No evidence for charged
Higgs bosonproduction is observed. The lower limit for its mass is determined to be 52 GeV at 95% confidence level, independent of the H + → τ + ν τ branching ratio.
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