Ultraviolet Behavior of N=8 Supergravity

Lance J. Dixon

Ultraviolet Behavior of N=8 Supergravity

High Energy Physics - Theory 2015-03-17 v1 High Energy Physics - Phenomenology

Authors: Lance J. Dixon

Abstract

In these lectures I describe the remarkable ultraviolet behavior of N=8 supergravity, which through four loops is no worse than that of N=4 super-Yang-Mills theory (a finite theory). I also explain the computational tools that allow multi-loop amplitudes to be evaluated in this theory - the KLT relations and the unitarity method - and sketch how ultraviolet divergences are extracted from the amplitudes.

Keywords

scattering amplitudes

Cite

@article{arxiv.1005.2703,
  title  = {Ultraviolet Behavior of N=8 Supergravity},
  author = {Lance J. Dixon},
  journal= {arXiv preprint arXiv:1005.2703},
  year   = {2015}
}

Comments

30 pages, 12 figures; lectures presented at International School of Subnuclear Physics, 47th Course, Erice Sicily, August 29-September 7, 2009

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