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SUMMARY:On-Shell Diagrams for N = 8 Supergravity Amplitudes - Arthur Lipst
 ein (University of Durham)
DTSTART:20160629T090000Z
DTEND:20160629T100000Z
UID:TALK66624@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Standard Feynman diagram techniques often obscure the underlyi
 ng simplicity of on-shell scattering amplitudes. This difficulty can be ov
 ercome by working with on-shell diagrams\, which do not contain virtual pa
 rticles. In this talk\, I will describe tree-level recursion relations for
  N = 8 supergravity amplitudes using a generalisation of the on-shell diag
 rams developed for planar N = 4 super-Yang-Mills\, which imply new identit
 ies for non-planar diagrams as well as interesting relations between the N
 =4 and N=8 theories. If time permits\, I will also speculate on the extens
 ion of this approach to loop-level. This talk is based on 1604.03046\, in 
 collaboration with Paul Heslop.
LOCATION:Seminar Room 1\, Newton Institute
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