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arXiv · hep-ex/0309076

Search for Doubly-Charged Higgs Bosons at LEP

L3 Collaboration
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Abstract

Doubly-charged Higgs bosons are searched for in e^+e^- collision data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV. Final states with four leptons are analysed to tag the pair-production of doubly charged Higgs bosons. No significant excess is found and lower limits at 95% confidence level on the doubly-charged Higgs boson mass are derived. They vary from 95.5 GeV to 100.2 GeV, depending on the decay mode. Doubly-charged Higgs bosons which couple to electrons would modify the cross section and forward-backward asymmetry of the e^+e^- -> e^+e^- process. The measurements of these quantities do not deviate from the Standard Model expectations and doubly-charged Higgs bosons with masses up to the order of a TeV are excluded.

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L3 Collaboration. 2003-09-26. Search for Doubly-Charged Higgs Bosons at LEP. https://doi.org/10.1016/j.physletb.2003.09.082

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