27 citations · 33 across the 3 of their papers we have counts for
4 papers · 1 filter
Geometrical methods in loop calculations and the three-point function
A. I. Davydychev
A geometrical way to calculate N-point Feynman diagrams is reviewed. As an example, the dimensionally-regulated three-point function is considered, including all orders of its epsi…
Three-body phase space: symmetrical treatments
A. I. Davydychev, R. Delbourgo
We derive expressions for three-body phase space that are explicitly symmetrical in the masses of the three particles, by three separate methods.
Geometrical approach to loop calculations and the epsilon-expansion of Feynman diagrams
A. I. Davydychev, M. Yu. Kalmykov
Some problems related to the structure of higher terms of the epsilon-expansion of Feynman diagrams are discussed.
Geometrical approach to Feynman integrals and the epsilon-expansion
A. I. Davydychev
Application of the geometrically-inspired representations to the epsilon-expansion of the two-point function with different masses is considered. Explicit result for an arbitrary t…