Towards numerical two-loop integrand reduction

Fuente: arXiv
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Auteurs principaux: Bevilacqua, Giuseppe, Canko, Dhimiter, Papadopoulos, Costas, Spourdalakis, Aris
Format: Preprint
Publié: 2025
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author Bevilacqua, Giuseppe
Canko, Dhimiter
Papadopoulos, Costas
Spourdalakis, Aris
author_facet Bevilacqua, Giuseppe
Canko, Dhimiter
Papadopoulos, Costas
Spourdalakis, Aris
contents 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 analysis presented in this paper, in conjunction with the ongoing development of the computational framework $\text{HELAC-2LOOP}$, paves the road for the construction of an automated program for two-loop amplitude calculations for arbitrary scattering processes.
format Preprint
id arxiv_https___arxiv_org_abs_2506_07231
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards numerical two-loop integrand reduction
Bevilacqua, Giuseppe
Canko, Dhimiter
Papadopoulos, Costas
Spourdalakis, Aris
High Energy Physics - Phenomenology
High Energy Physics - Theory
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 analysis presented in this paper, in conjunction with the ongoing development of the computational framework $\text{HELAC-2LOOP}$, paves the road for the construction of an automated program for two-loop amplitude calculations for arbitrary scattering processes.
title Towards numerical two-loop integrand reduction
topic High Energy Physics - Phenomenology
High Energy Physics - Theory
url https://arxiv.org/abs/2506.07231