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O(αs) corrections to polarized top quark decay into a charged Higgs boson: \(t(\uparrow)\to{H}^+ + b\)

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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.

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Authors and Affiliations

  1. Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudinger Weg 7, 55099, Mainz, Germany

    A. Kadeer, J.G. Körner & M.C. Mauser

Authors
  1. A. Kadeer
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  2. J.G. Körner
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  3. M.C. Mauser
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Corresponding author

Correspondence to A. Kadeer.

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PACS

12.38.Bx; 13.88.+e; 14.65.Ha; 14.80.Cp

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Kadeer, A., Körner, J. & Mauser, M. O(αs) corrections to polarized top quark decay into a charged Higgs boson: \(t(\uparrow)\to{H}^+ + b\) . Eur. Phys. J. C 54, 175–185 (2008). https://doi.org/10.1140/epjc/s10052-007-0510-5

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  • DOI: https://doi.org/10.1140/epjc/s10052-007-0510-5

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