Five-parton scattering in QCD at two loops
Bakul Agarwal, Federico Buccioni, Federica Devoto, Giulio Gambuti, Andreas von Manteuffel, Lorenzo Tancredi
Abstract
We compute all helicity amplitudes for the scattering of five partons in two-loop QCD in all the relevant flavor configurations, retaining all contributing color structures. We employ tensor projection to obtain helicity amplitudes in the ’t Hooft-Veltman scheme starting from a set of primitive amplitudes. Our analytic results are expressed in terms of massless pentagon functions, and are easy to evaluate numerically. These amplitudes provide important input to investigations of soft-collinear factorization and to studies of the high-energy limit. Published by the American Physical Society 2024
Topics & Concepts
PartonParticle physicsQuantum chromodynamicsPhysicsScatteringQuantum electrodynamicsNuclear physicsQuantum mechanicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research