NNLOCAL: completely local subtractions
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