Quark and Gluon Form Factors in Four-Loop QCD
Roman N. Lee, Andreas von Manteuffel, Robert M. Schabinger, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser
Abstract
We compute the photon-quark and Higgs-gluon form factors to four-loop order within massless perturbative quantum chromodynamics. Our results constitute ready-to-use building blocks for N^{4}LO cross sections for Drell-Yan processes and gluon-fusion Higgs boson production at the LHC. We present complete analytic expressions for both form factors and show several of the most complicated master integrals.
Topics & Concepts
PhysicsMassless particleParticle physicsHiggs bosonGluonQuantum chromodynamicsQuarkBosonPerturbative QCDOrder (exchange)Form factor (electronics)Elementary particleTop quarkQuantum field theoryProduction (economics)QuantumStandard Model (mathematical formulation)Quark modelFeynman graphPerturbation theory (quantum mechanics)Quantum numberTheoretical physicsQuantum electrodynamicsJet (fluid)Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research