O(αs) corrections to polarized top quark decay into a charged Higgs boson: $t(uparrow)to{H}^+ + b$ |
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Authors: | A. Kadeer J.G. Körner M.C. Mauser |
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Affiliation: | 1.Institut für Physik,Johannes Gutenberg-Universit?t Mainz,Mainz,Germany |
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Abstract: | We calculate the O(αs) 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 mb≠0 and for mb=0. For mb=0 our closed-form expressions for the unpolarized and polarized rates become rather compact. PACS 12.38.Bx; 13.88.+e; 14.65.Ha; 14.80.Cp |
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