Analytical evaluation of certain on-shell two-loop three-point diagrams
A. I. Davydychev, V. A. Smirnov
Abstract
An analytical approach is applied to the calculation of some dimensionally-regulated two-loop vertex diagrams with essential on-shell singularities. Such diagrams are important for the evaluation of QED corrections to the muon decay, QCD corrections to top quark decays t->W+b, t->H+b, etc.
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