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arXiv · hep-ph/9811431

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

Andrew Akeroyd·Abdesslam Arhrib·El-Mokhtar Naimi
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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 $ρ$ 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 $\tanβ$.

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Andrew Akeroyd, Abdesslam Arhrib, El-Mokhtar Naimi. 1998-11-21. Yukawa coupling corrections to the decay $H^+ \to W^+ A^0$. https://doi.org/10.1007/s100529900266

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