Title of article :
Analytical evaluation of certain on-shell two-loop three-point diagrams
Author/Authors :
Davydychev، نويسنده , , A.I. and Smirnov، نويسنده , , V.A.، نويسنده ,
Abstract :
An analytical approach is applied to calculating some dimensionally regulated two-loop vertex diagrams with essential on-shell singularities. Such diagrams are important in evaluating the QED corrections to the muon decay, the QCD corrections to top quark decays t→W+b, t→H+b, etc.
Keywords :
Two-loop Feynman diagram , On-shell vertex , Dimensional regularization , Muon Decay
Journal title :
Astroparticle Physics
