Towards numerical two-loop integrand reduction
High Energy Physics - Phenomenology
2025-11-14 v3 High Energy Physics - Theory
Abstract
We present a method for the integrand-level reduction of two-loop helicity amplitudes in both and dimensions. The amplitude is expressed in terms of a set of Feynman integrals and their coefficients that depend on the external kinematics. The analysis presented in this paper, in conjunction with the ongoing development of the computational framework , paves the road for the construction of an automated program for two-loop amplitude calculations for arbitrary scattering processes.
Cite
@article{arxiv.2506.07231,
title = {Towards numerical two-loop integrand reduction},
author = {Giuseppe Bevilacqua and Dhimiter Canko and Costas Papadopoulos and Aris Spourdalakis},
journal= {arXiv preprint arXiv:2506.07231},
year = {2025}
}
Comments
38 pages, 15 tables, 8 figures, accepted for publication in JHEP