par Abdallah, Jalal Mohamad;Bertrand, Daniel ; [et al.]
Référence European Physical Journal C. Particles and Fields, 34, page (399-418)
Publication Publié, 2004
Article révisé par les pairs
Résumé : A search for pair-produced charged Higgs bosons was performed in the data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 209 GeV. Five different final states, τ+νττ -ν̄τ, cs̄c̄s, cs̄τ -ν̄τ, W*AW*A and W*Aτ-ν̄τ were considered, accounting for the major expected decays in type I and type II Two Higgs Doublet Models. No significant excess of data compared to the expected Standard Model processes was observed. The existence of a charged Higgs boson with mass lower than 76.7 GeV/c2 (type I) or 74.4 GeV/c2 (type II) is excluded at the 95% confidence level, for a wide range of the model parameters. Model independent cross-section limits have also been calculated.