Search for doubly-charged Higgs bosons at LEP

Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2003) Search for doubly-charged Higgs bosons at LEP Physics Letters B, 576 (1-2). pp. 18-28. ISSN 0370-2693

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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.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:84021
Deposited On:23 Feb 2012 12:05
Last Modified:23 Feb 2012 12:05

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