NNLOCAL: completely local subtractions

Read full text
Authors: Flavio Guadagni, Vittorio Del Duca, Claude Duhr, L. Fekésházy, Pooja Mukherjee, Gabor Somogyi, Francesco Tramontano, Sam Van Thurenhout
Cited by: 1

Abstract

The computation of higher-order corrections to cross-sections relevant at LHC involves the evaluation of phase-space integrals that exhibit soft and collinear divergences. The subtraction of these divergences is a key ingredient to obtain fully-differential predictions for physical observables. We discuss a subtraction method to handle these divergences based on the construction of universal local counterterms. The integration of the counterterms is carried out analytically, giving a strong control on the numerical stability of our predictions. We implement our method in a numerical program, that we dub NNLOCAL, and validate it by computing the fully-differential NNLO cross-section for Higgs boson production in gluon-gluon fusion.

Fields of Study & Subjects

Particle physics theoretical and experimental studies High-Energy Particle Collisions Research Quantum Chromodynamics and Particle Interactions

Publication details

Journal / source
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2025)
Publisher
Sissa Medialab
Pages
243–243
Publication date
14 January 2026