Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
A comprehensive study is performed of general massive, scalar, two-loop Feynman diagrams with three external legs. Algorithms for their numerical evaluation are introduced and discussed, numerical results are shown for all different topologies, and comparisons with analytical results, whenever available, are performed. An internal cross-check, based on alternative procedures, is also applied. The analysis of infrared divergent configurations, as well as the treatment of tensor integrals, will be discussed in two forthcoming papers.
Cite
@article{arxiv.hep-ph/0311186,
title = {Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations},
author = {A. Ferroglia and G. Passarino and M. Passera and S. Uccirati},
journal= {arXiv preprint arXiv:hep-ph/0311186},
year = {2009}
}
Comments
65 pages