Abstract.
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 parameterizes 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 \(\lambda_5\).
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Received:17 July 2000 / Revised version: 28 February 2001 / Published online: 3 May 2001
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Akeroyd, A., Naimi, E. Radiative corrections to the decay \(H^+ \to W^+ A^0\) . Eur. Phys. J. C 20, 51–62 (2001). https://doi.org/10.1007/s100520100653
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DOI: https://doi.org/10.1007/s100520100653