External Seminar by Samuel Abreu

Thursday 22 Oct 2020, 14:00 → 15:00 Europe/London

Title:

Leading Color Two-Loop QCD Corrections for Three-Photon Production at Hadron Colliders

 

Abstract: 

I will discuss the very recent calculation of the two-loop helicity amplitudes for the production of three photons at hadron colliders in leading-color QCD. Using the two-loop numerical unitarity method, coupled with analytic reconstruction techniques, we obtained the amplitudes as a decomposition in terms of master integrals and the associated two-loop remainders. The remainders are given in a form that can be efficiently evaluated across the whole physical phase space in a numerically stable manner. This is the first time that a five-point two-loop process is publicly available for immediate phenomenological applications.

 

Zoom link:

https://durhamuniversity.zoom.us/j/99420124988?pwd=ZEFLSDB3THJtaWZOTU54R25mT1NuZz09

talk.pdf