Eur. Phys. J. C (2005) 41: 361-375
https://doi.org/10.1140/epjc/s2005-02229-6

theoretical physics

Automated computation of one-loop integrals in massless theories

Institut für Physik, Universität Mainz, 55099, Mainz, Germany

Abstract

We consider one-loop tensor and scalar integrals, which occur in a massless quantum field theory, and we report on the implementation into a numerical program of an algorithm for the automated computation of these one-loop integrals. The number of external legs of the loop integrals is not restricted. All calculations are done within dimensional regularization.