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arXiv · 0903.1533

SANCnews: top decays in QCD and EW sectors

D. Bardin·S. Bondarenko·P. Christova·L. Kalinovskaya·V. Kolesnikov·W. von Schlippe
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Abstract

In this paper we present the results of the implementation of the decay t -> b f1 f1 into the SANC system (f1 is a massless fermion). The new aspect of the work is the combination of QCD and EW corrections. All calculations are done at the one-loop level in the Standard Model. We give a detailed account of the new procedure - the forming of a class of JAW,WA functions. These functions are related to the procedure of extraction of infra-red and mass-shell singular divergences. The emphasis of this paper is on the presentation of numerical results for various approaches: complete one-loop calculations and different versions of pole approximations.

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D. Bardin, S. Bondarenko, P. Christova, L. Kalinovskaya, V. Kolesnikov, W. von Schlippe. 2009-03-09. SANCnews: top decays in QCD and EW sectors. https://doi.org/10.1134/s1547477110020020

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