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Searches for Charged Higgs Bosons at LEP

Andre G. Holzner
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Abstract

The four LEP experiments Aleph, Delphi, L3 and Opal updated their searches for pair production of charged Higgs bosons using more than 210/pb luminosity collected per experiment in the year 2000. Combining it with previously collected data, a significant deviation from background (equivalent to 4.4 sigma) is found by the L3 collaboration for low values of the branching ratio H+/- -> tau nu around masses of about 68 GeV. This excess is however not seen by the other LEP collaborations and thus a lower limit on the charged Higgs mass is set at 78.5 GeV at 95% confidence level. All results reported here are still preliminary.

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Andre G. Holzner. 2001-05-17. Searches for Charged Higgs Bosons at LEP. https://arxiv.org/abs/hep-ex/0105045

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