Regular Article - Theoretical Physics
O(αs) corrections to polarized top quark decay into a charged Higgs boson:
Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudinger Weg 7, 55099, Mainz, Germany
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Published online: 24 January 2008
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.
© Springer-Verlag , 2008