Two-Loop Iteration of Five-Point N=4 Super-Yang-Mills Amplitudes

Bern, Z.; Czakon, M.; Kosower, D. A.; Roiban, R.; Smirnov, V. A.

Two-Loop Iteration of Five-Point N=4 Super-Yang-Mills Amplitudes

Authors

Description

We confirm by explicit computation the conjectured all-orders iteration of planar maximally supersymmetric N=4 Yang-Mills theory in the nontrivial case of five-point two-loop amplitudes. We compute the required unitarity cuts of the integrand and evaluate the resulting integrals numerically using a Mellin--Barnes representation and the automated package of ref.~[1]. This confirmation of the iteration relation provides further evidence suggesting that N=4 gauge theory is solvable.
4 pages, 3 figures