A first look at the function space for planar two-loop six-particle Feynman integrals

Understand

Two-loop corrections to scattering amplitudes are crucial theoretical input for collider physics.

• Recent years have seen tremendous advances in computing Feynman integrals, scattering amplitudes, and cross sections for five-particle processes.
• In this paper, we initiate the study of the function space for planar two-loop six-particle processes.
• We study all genuine six-particle Feynman integrals, and derive the differential equations they satisfy on maximal cuts.