SANCnews: top decays in QCD and EW sectors

Details SANCnews: top decays in QCD and EW sectors SANCnews: top decays in QCD and EW sectors

2009-03-09

arxiv.org/abs/0903.1533v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

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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