Analytic results for multiloop scattering amplitudes

Abstract

The velocity-dependent cusp anomalous dimension is by definition the ultraviolet (UV) anomalous dimension of a Wilson loop with a cusp. It appears in many physically interesting processes. In this talk we present recent progress in the analytic calculation of that quantity.

Comments: 7 pages, 5 figures; talk given at 'Loops and Legs in Quantum Field Theory', 2012