Abstract.
We compute the fermionic radiative contributions to the decay \(H^+ \to W^{+(*)} A^0\) in the framework of models with two Higgs doublets (2HDM), for the case of an on-shell and off-shell W. We show that, in the majority of the cases, current measurements of the \(\rho\) parameter suggest \(M_{H^{\pm}}\ge M_A\) and such decays could invalidate current charged Higgs searches or aid detection in the region \(M_{H^{\pm}}\approx M_W\). We find that the radiative corrections may approach 50% for small values of \(\tan\beta\).
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Received: 22 April 1999 / Published online: 10 December 1999
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Akeroyd, A., Arhrib, A. & Naimi, E. Yukawa coupling corrections to the decay \(H^+ \to W^+ A^0\) . Eur. Phys. J. C 12, 451–460 (2000). https://doi.org/10.1007/s100529900266
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DOI: https://doi.org/10.1007/s100529900266