QCD corrections to the charged Higgs decay of a heavy quark

Details QCD corrections to the charged Higgs decay of a heavy quark QCD corrections to the charged Higgs decay of a heavy quark

1993-01-13

arxiv.org/abs/hep-ph/9301237v2

Phys.Rev. D48 (1993) 4183-4187

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, Alberta Thy-34-92 and CfPA-92-26

Scientific paper

10.1103/PhysRevD.48.4183

We present an analytic formula for the $O(\alpha_s)$ 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 $\tan \beta$.

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