𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Amplitudes and ultraviolet behavior of N = 8 supergravity

✍ Scribed by Z. Bern; J.J. Carrasco; L.J. Dixon; H. Johansson; R. Roiban

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
382 KB
Volume
59
Category
Article
ISSN
0015-8208

No coin nor oath required. For personal study only.

✦ Synopsis

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.

πŸ“œ SIMILAR VOLUMES

On cancellations of ultraviolet divergen
On cancellations of ultraviolet divergences in supergravity amplitudes
✍ N.E.J. Bjerrum-Bohr; P. Vanhove πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 186 KB

## Abstract Concrete calculations have pointed out that amplitudes in perturbative gravity exhibit unanticipated cancellations taming their ultraviolet behaviour independently of supersymmetry. Similar ultraviolet behaviour of 𝒩 = 4 super‐Yang‐Mills and 𝒩 = 8 maximal supergravity has explicitly bee