Singularity Structure of Maximally Supersymmetric Scattering Amplitudes

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  • Nima Arkani-Hamed
  • Jacob L. Bourjaily
  • Freddy Cachazo
  • Jaroslav Trnka
We present evidence that loop amplitudes in maximally supersymmetric (N=4) Yang-Mills theory (SYM) beyond the planar limit share some of the remarkable structures of the planar theory. In particular, we show that through two loops, the four-particle amplitude in full N=4 SYM has only logarithmic singularities and is free of any poles at infinity—properties closely related to uniform transcendentality and the UV finiteness of the theory. We also briefly comment on implications for maximal (N=8) supergravity theory (SUGRA).
Original languageEnglish
Article number261263
JournalPhysical Review Letters
Volume113
Issue number26
ISSN0031-9007
DOIs
Publication statusPublished - 29 Dec 2014

ID: 138735136