HEP2025: 41st Conference on Recent Developments in High Energy Physics and Cosmology [NKUA]

Towards numerical two-loop integrand reduction

3 Jul 2025, 12:45

30m

“Alkis Argyriadis” Amphitheatre (National and Kapodistrian University of Athens)

Session 8

Speaker

Giuseppe Bevilacqua (NCSR Demokritos)

Description

We present a method for the integrand-level reduction of two-loop helicity amplitudes in both d=4−2ϵ and d=4 dimensions. The amplitude is expressed in terms of a set of Feynman integrals and their coefficients that depend on the external kinematics. The method presented in this talk, in conjunction with the ongoing development of the computational framework HELAC-2LOOP, paves the road for the construction of an automated program for numerical two-loop amplitude calculations.

Presentation materials

HEP2025_Bevilacqua.pdf