Geometrical methods in loop calculations and the three-point function
High Energy Physics - Theory
2007-05-23 v1 High Energy Physics - Phenomenology
Abstract
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 epsilon-expansion. Analytical continuation to other regions of the kinematical variables is discussed.
Cite
@article{arxiv.hep-th/0509233,
title = {Geometrical methods in loop calculations and the three-point function},
author = {A. I. Davydychev},
journal= {arXiv preprint arXiv:hep-th/0509233},
year = {2007}
}
Comments
6 pages, LaTeX, 3 eps figures, contribution to proceedings of ACAT2005 (Zeuthen, May 2005)