Radiative corrections to the decay $H^+ \to W^+ A^0

Eur.Phys.J.C20:51-62,2001 Full one-loop electroweak corrections to the on-shell decay $H^+ \to W^+A^0$ are computed in the framework of models with two Higgs doublets (THDM). Such a decay may be dominant for $H^{\pm}$ over a wide range of parameter space relevant at present and future colliders. We...

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Bibliographic Details
Main Authors Akeroyd, A. G, Arhrib, A, Naimi, E
Format Journal Article
LanguageEnglish
Published 28.02.2000
Subjects
Physics - High Energy Physics - Phenomenology
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Summary:Eur.Phys.J.C20:51-62,2001 Full one-loop electroweak corrections to the on-shell decay $H^+ \to W^+A^0$ are computed in the framework of models with two Higgs doublets (THDM). Such a decay may be dominant for $H^{\pm}$ over a wide range of parameter space relevant at present and future colliders. We show that the corrections may approach 40% and in particular are sensitive to $\lambda_5$, which parametrizes the discrete symmetry breaking term. We suggest that a measurement of the branching ratio of $H^+ \to W^+A^0$ may offer a possibility of measuring the magnitude of $\lambda_5$.
DOI:10.48550/arxiv.hep-ph/0002288