Speaker
Colomba Brancaccio
Description
In this talk, I will discuss the status of the calculation of the two-loop QCD corrections to the production of a top-quark pair associated with a jet at hadron colliders. This is the main bottleneck for achieving NNLO predictions. I will review recent progress in calculating the required Feynman integrals using the method of differential equations. I will also present the cutting-edge computational techniques that allow us to tackle the extreme algebraic complexity of the two-loop multi-scale helicity amplitudes and the presence of complicated special functions.
Authors
Colomba Brancaccio
Heribertus Bayu Hartanto
(Asia Pacific Center for Theoretical Physics)
Matteo Becchetti
(University of Bologna)
Simon David Badger
(Universita e INFN Torino (IT))
Simone Zoia
(CERN)
