Search for charged Higgs bosons in $e^{+} e^{-}$ collisions at center center-of-mass energies up to 202-GeV

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at centre-of-mass energies between 192 and 202 GeV, corresponding to an integrated luminosity of 233.2 pb −1 . Decays into a charm and a strange quark or into a tau lepton and its neutrino are considered. The observed events are consistent with the expectations from Standard Model background processes. Including data taken at lower centre-of-mass energies, lower limits on the charged Higgs mass are derived at the 95% confidence level. They vary from 67.4 to 79.9 GeV as a function of the H ± → τν branching ratio.

electron positron: colliding beams
electron positron: annihilation
Higgs particle: search for
Higgs particle: charged particle
Higgs particle: pair production
Higgs particle: decay modes
Higgs particle: mass
lower limit
L3
experimental results

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