par Abreu, Pedro;Lefebure, Véronique 
;Lemonne, Jacques ;Tomaradze, A.;Vander Velde, Catherine ;Van Doninck, Walter;Van Lysebetten, Ann;Verbeure, F;Wickens, John H. ;Bertrand, Daniel ;Chen, Max;Deghorain, A.;De Brabandere, S.;De Clercq, Catherine;Herquet, P. ;Hoorelbeke, S.;Huet, Kathy; [et al.]
Référence European Physical Journal C. Particles and Fields, 2, 1, page (1-37)
Publication Publié, 1998
;Lemonne, Jacques ;Tomaradze, A.;Vander Velde, Catherine ;Van Doninck, Walter;Van Lysebetten, Ann;Verbeure, F;Wickens, John H. ;Bertrand, Daniel ;Chen, Max;Deghorain, A.;De Brabandere, S.;De Clercq, Catherine;Herquet, P. ;Hoorelbeke, S.;Huet, Kathy; [et al.]Référence European Physical Journal C. Particles and Fields, 2, 1, page (1-37)
Publication Publié, 1998
Article révisé par les pairs
| Résumé : | A search for neutral and charged Higgs bosons has been performed in the data collected by the DELPHI detector at centre-of-mass energies of 161 GeV and 172 GeV. The analysis assumes either the pair-production of charged Higgs bosons, H±, or the production of the lightest neutral Higgs boson, h, with either a Z or a neutral pseudoscalar Higgs boson, A. All final state topologies expected from the decay of h and A into hadrons or a pair of τ leptons, and from the decay of H± into a pair of quarks or a τντ pair have been considered. Lower limits at the 95% confidence level have been obtained on the Higgs boson masses. The limits are 66.2 GeV/c2 for h in the Standard Model, 59.5 GeV/c2 for h and 51.0 GeV/c2 for A in the minimal supersymmetric extension of the Standard Model with sensible assumptions on the model parameters and, using the 161 GeV data only, 51.5 GeV/c2 for H± in the general two-doublet scheme for H± branching fractions into hadrons below 0.8. |
