Numerical evaluation of Mellin-Barnes integrals in Minkowskian regions --- MBnumerics --- Integration-by-parts reduction program --- Kira

by Dr Johann Usovitsch (Trinity College Dublin)

Wednesday 25 Jul 2018, 13:00 → 14:00 Europe/Brussels

E/3rd floor-E.349 - Seminar room (E.349) (Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve))

In the first part of the talk, we introduce techniques to treat numerically Mellin-Barnes integrals in physical regions, which arise in the need of the computation of Feynman integrals for the electroweak two-loop corrections to the pseudo observables at the Z-boson resonance. In the second part we discuss new features of publicly available beta version Kira (Laporta algorithm implemented in a C++ program): https://gitlab.com/kira-pyred/kira.git.