Geometrical methods in loop calculations and the three-point function

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97345A 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 epsilon-expansion. Analytical continuation to other regions of the kinematical variables is discussed.6 pages, LaTeX, 3 eps figures, contribution to proceedings of ACAT2005 (Zeuthen, May 2005)High Energy Physics - TheoryHigh Energy Physics - PhenomenologyGeometrical methods in loop calculations and the three-point functiontext