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arXiv · hep-ph/9301237

QCD corrections to the charged Higgs decay of a heavy quark

Andrzej Czarnecki·Sacha Davidson
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Abstract

We present an analytic formula for the $O(α_s)$ corrections to the decay $t\to H^+b$ for nonzero $m_H$ and $m_b$. The Equivalence Theorem is used to relate these corrections to those for the process $t\to W^+b$. Contrary to previously published results we find that the effect of the $b$ quark mass is negligible for a wide range of $m_t$, $m_H$ and $\tan β$.

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Andrzej Czarnecki, Sacha Davidson. 1993-01-13. QCD corrections to the charged Higgs decay of a heavy quark. https://doi.org/10.1103/physrevd.48.4183

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