Radiative corrections to the decay H⁺ → W⁺ A⁰

2000/02/29 by A. G. Akeroyd, A.G. Akeroyd, A. Arhrib +1 · 2 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1007/s100520100653

published as Eur.Phys.J.C20:51-62,2001 · 27 pages, LaTex, 6 figures, one figure added, appendix shortened. To be published in Eur. Phys. Jour. C

arxiv created 2001/03/03 · openalex publication_date 2001/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Full one-loop electroweak corrections to the on-shell decay H⁺ → W⁺A⁰ are computed in the framework of models with two Higgs doublets (THDM). Such a decay may be dominant for H^± 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 λ₅, which parametrizes the discrete symmetry breaking term. We suggest that a measurement of the branching ratio of H⁺ → W⁺A⁰ may offer a possibility of measuring the magnitude of λ₅.

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