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arXiv · hep-ph/0211098

$ O(α_s) $ corrections to polarized top decay into a charged Higgs $ t(\uparrow) \to H^+ + b $

A. Kadeer·J. G. Körner·M. C. Mauser
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Abstract

We calculate the $ O(α_s) $ radiative corrections to polarized top quark decay into a charged Higgs boson and a massive bottom quark in two variants of the two-Higgs-doublet model. The radiative corrections to the polarization asymmetry of the decay may become as large as $ 25 % $. We provide analytical formulae for the unpolarized and polarized rates for $ m_b \neq 0 $ and for $ m_b = 0 $. For $ m_b = 0 $ our closed-form expressions for the unpolarized and polarized rates become rather compact.

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A. Kadeer, J. G. Körner, M. C. Mauser. 2008-02-25. $ O(α_s) $ corrections to polarized top decay into a charged Higgs $ t(\uparrow) \to H^+ + b $. https://doi.org/10.1140/epjc%2Fs10052-007-0510-5

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