Two-Loop Helicity Amplitudes for Diphoton Plus Jet Production in Full Color
Bakul Agarwal, Federico Buccioni, Andreas von Manteuffel, Lorenzo Tancredi
Abstract
We present the two-loop QCD amplitudes for the production of two photons and a jet at hadron colliders with full-color dependence. This is the first time that radiative corrections for a five-particle scattering process have been computed beyond the leading-color approximation at this perturbative order in QCD. The results presented in this Letter will be crucial to guaranteeing reliable predictions with unprecedented precision for diphoton production at hadron colliders. The methodologies that we describe lead to a significant simplification of the calculation and their applicability extends to a wider range of five-point scattering processes.
Topics & Concepts
PhysicsHelicityParticle physicsJet (fluid)AmplitudeHadronQuantum chromodynamicsScatteringScattering amplitudePhotonProduction (economics)Perturbative QCDRadiative transferNuclear physicsRange (aeronautics)Quantum electrodynamicsGluonForward scatterElementary particlePair productionOrder (exchange)Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research