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arXiv · hep-ph/0404249

Two-loop QCD corrections to top quark decay

Maciej Slusarczyk
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Abstract

We present a determination of a new class of Feynman diagrams relevant for second-order QCD corrections to the top quark decay t -> b W. Modern computing techniques allow us to perform a reduction of the original loop integrals to master integrals. We obtain the analytical value of the top decay rate as an expansion around the limit of massless b and W.

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Maciej Slusarczyk. 2004-04-27. Two-loop QCD corrections to top quark decay. https://doi.org/10.1142/9789812701961_0044

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