Leading Singularities of the Two-Loop Six-Particle MHV Amplitude

Understand

We use the leading singularity technique to determine the planar six-particle two-loop MHV amplitude in N=4 super Yang-Mills in terms of a simple basis of integrals.

• Our result for the parity even part of the amplitude agrees with the one recently presented in arXiv:0803.1465.
• The parity-odd part of the amplitude is a new result.
• The leading singularity technique reduces the determination of the amplitude to finding the solution to a system of linear equations.