Scientific article
Open access

Search for doubly-charged Higgs bosons at LEP

ContributorsL3 Collaboration
Published inPhysics letters. B, vol. 576, no. 1-2, p. 18-28
Publication date2003

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 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.

Citation (ISO format)
L3 Collaboration. Search for doubly-charged Higgs bosons at LEP. In: Physics letters. B, 2003, vol. 576, n° 1-2, p. 18–28. doi: 10.1016/j.physletb.2003.09.082
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Article (Published version)
ISSN of the journal0370-2693

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