Standard SANC modules for NLO QCD Radiative Corrections to Single-top Production

Details Standard SANC modules for NLO QCD Radiative Corrections to Single-top Production Standard SANC modules for NLO QCD Radiative Corrections to Single-top Production

2011-10-17

arxiv.org/abs/1110.3622v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 2 figures, 17 tables

Scientific paper

It this paper we present the results obtained with the newly created Standard SANC modules for calculation of the NLO QCD corrections to single top production processes in s and t channels at the partonic level, as well as top-decays. The main aim of these results is to prove the correct work of modules. A comprehensive comparison with results of the CompHEP system is given, where possible. These modules are intended to be used in Monte Carlo generators for single top production processes at the LHC. As in our recent paper, devoted to the electroweak corrections to these processes, we study the regularization of the top-legs associated infrared divergences with aid of the complex mass of the top quark. A comparison of QCD corrections with those computed by the conventional method is presented both for top production and decays. For s channel production we give an analytic proof of equivalence of the two methods in the limit of low top width.

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