par Aktas, Adil;Favart, Laurent 
;Janssen, Xavier ;Marage, Pierre ; [et al.]
Référence Physics letters. Section B, 638, 5-6, page (432-440)
Publication Publié, 2006
;Janssen, Xavier ;Marage, Pierre ; [et al.]Référence Physics letters. Section B, 638, 5-6, page (432-440)
Publication Publié, 2006
Article révisé par les pairs
| Résumé : | A search for the single production of doubly-charged Higgs bosons H ± ± in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of them being an electron. The analysis uses up to 118 pb -1 of ep data collected by the H1 experiment at HERA. No evidence for doubly-charged Higgs production is observed and mass dependent upper limits are derived on the Yukawa couplings h e l of the Higgs boson to an electron-lepton pair. Assuming that the doubly-charged Higgs only decays into an electron and a muon via a coupling of electromagnetic strength h e μ = sqrt(4 π α em) ≃ 0.3, a lower limit of 141 GeV on the H ± ± mass is obtained at the 95% confidence level. For a doubly-charged Higgs decaying only into an electron and a tau and a coupling h e τ ≃ 0.3, masses below 112 GeV are ruled out. © 2006 Elsevier B.V. All rights reserved. |
