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, tau(+)nu(tau)tau(-)(ν) over bar (tau), c (s) over bar(c) over bar (tau), W*AW*A and W*Atau(-)(ν) over bar (tau) 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/c(2) (type I) or 74.4 GeV/c(2) (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.

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). Search for charged Higgs bosons at LEP in general two Higgs doublet models. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 34(4), 399-418 [10.1140/epjc/s2004-01732-6].

Search for charged Higgs bosons at LEP in general two Higgs doublet models

CALVI, MARTA;PAGANONI, MARCO;PULLIA, ANTONINO;TABARELLI DE FATIS, TOMMASO;
2004

Abstract

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, tau(+)nu(tau)tau(-)(ν) over bar (tau), c (s) over bar(c) over bar (tau), W*AW*A and W*Atau(-)(ν) over bar (tau) 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/c(2) (type I) or 74.4 GeV/c(2) (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.
Articolo in rivista - Articolo scientifico
high energy collider; LEP; DELPHI; Higgs
English
2004
34
4
399
418
none
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). Search for charged Higgs bosons at LEP in general two Higgs doublet models. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 34(4), 399-418 [10.1140/epjc/s2004-01732-6].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/46642
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