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Amplitudes and Ultraviolet Behavior of N=8 Supergravity

By Zvi Bern, John Joseph Carrasco, Lance Dixon, Henrik Johansson and Radu Roiban

Abstract

In this contribution we describe computational tools that permit the evaluation of multi-loop scattering amplitudes in N=8 supergravity, in terms of amplitudes in N=4 super-Yang-Mills theory. We also discuss the remarkable ultraviolet behavior of N=8 supergravity, which follows from these amplitudes, and is as good as that of N=4 super-Yang-Mills theory through at least four loops.Comment: 28 pages, 8 figures, 3 tables. Talk presented at XVIth European Workshop on String Theory, Madrid, June, 2010. v2: minor typos fixe

Topics: High Energy Physics - Theory
Year: 2011
DOI identifier: 10.1002/prop.201100037
OAI identifier: oai:arXiv.org:1103.1848
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