Speaker
Xiaoyuan Zhang
Description
The analytic form for the total QED scattering cross section of an electron and a photon at order \alpha^3 is computed. This includes both the double-Compton scattering real-emission contribution as well as the virtual Compton scattering part. When combined with the recent analytic result for the pair-production cross section, the complete \alpha^3 cross section is now known. Both the next-to-leading order calculation as well as the pair-production cross section are computed using modern multi-loop calculation techniques, where cut diagrams are decomposed into a set of master integrals that are then computed using differential equations.
