Towards numerical two-loop integrand reduction
A bstract We present a method for the integrand-level reduction of two-loop helicity amplitudes in both d = 4 – 2 ϵ 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 HELAC-2LOOP, paves the road for the construction of an automated program for two-loop amplitude calculations for arbitrary scattering processes.
Authors
- Dhimiter D. Canko (ORCID: https://orcid.org/0000-0002-6526-7027)
- C.G. Papadopoulos (ORCID: https://orcid.org/0000-0003-0511-6646)
- Giuseppe Bevilacqua (ORCID: https://orcid.org/0000-0002-7049-0039)
- Aris Spourdalakis (ORCID: https://orcid.org/0000-0002-4960-1734)
Institutions
- Eötvös Loránd University (HU)
- University of Debrecen (HU)
- National Centre of Scientific Research "Demokritos" (GR)
- Institute of Nuclear and Particle Physics (GR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT)
- University of Bologna (IT)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2025-11-13
- DOI
- https://doi.org/10.1007/jhep11(2025)069
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Aspen Center for Physics
- CERN
- European Commission
- Hellenic Foundation for Research and Innovation
- HORIZON EUROPE Framework Programme