Linear relations between N >= 4 supergravity and subleading-color SYM amplitudes

Naculich, Stephen G.; Nastase, Horatiu [UNESP]; Schnitzer, Howard J.

Linear relations between N >= 4 supergravity and subleading-color SYM amplitudes

Data

2012-01-01

Autores

Naculich, Stephen G.

Nastase, Horatiu

Schnitzer, Howard J.

Editor

Springer

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

The IR divergences of supergravity amplitudes are less severe than those of planar SYM amplitudes, and are comparable to those subleading-color SYM amplitudes that are most subleading in the 1/N expansion, namely O(1/epsilon(L)) for L-loop amplitudes. We derive linear relations between one-and two-loop four-point amplitudes and one-loop five-point amplitudes of N = 4, 5, and 6 supergravity and the most-subleading-color contributions of the analogous amplitudes of N = 0, 1, and 2 SYM theory, extending earlier results for N = 8 supergravity amplitudes. Our work relies on linear relations between N >= 4 supergravity and planar SYM amplitudes that were recently derived using the double-copy property of gravity, and color-kinematic duality of gauge theories.