Automation of Multi-leg One-loop virtual Amplitudes

Abstract

In the last few years, much progress has been made in the computation of one-loop virtual matrix elements for processes involving many external particles. In this contribution the methods that have enabled this recent progress are briefly reviewed with a focus on their computing and automation aspects.

Comments: Plenary talk given at 13th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, ACAT2010, February 22-27, 2010, Jaipur, India, 10 pages