Search for charged Higgs bosons in e+e- collisions at [Formula: see text].
Eur Phys J C Part Fields
; 72(7): 2076, 2012.
Article
em En
| MEDLINE
| ID: mdl-25814843
ABSTRACT
A search is made for charged Higgs bosons predicted by Two-Higgs-Doublet extensions of the Standard Model (2HDM) using electron-positron collision data collected by the OPAL experiment at [Formula see text], corresponding to an integrated luminosity of approximately 600 pb-1. Charged Higgs bosons are assumed to be pair-produced and to decay into [Formula see text], τντ or AW±. No signal is observed. Model-independent limits on the charged Higgs-boson production cross section are derived by combining these results with previous searches at lower energies. Under the assumption [Formula see text], motivated by general 2HDM type II models, excluded areas on the [Formula see text] plane are presented and charged Higgs bosons are excluded up to a mass of 76.3 GeV at 95 % confidence level, independent of the branching ratio BR(H±âτντ ). A scan of the 2HDM type I model parameter space is performed and limits on the Higgs-boson masses [Formula see text] and mA are presented for different choices of tanß.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Eur Phys J C Part Fields
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Itália