Drell-Yan Cross Section to Third Order in the Strong Coupling Constant
Claude Duhr, Falko Dulat, Bernhard Mistlberger
Abstract
We present phenomenological results for the inclusive cross section for the production of a lepton pair via virtual photon exchange at next-to-next-to-next-to-leading order in perturbative QCD. In line with the case of Higgs production, we find that the hadronic cross section receives corrections at the percent level, and the residual dependence on the perturbative scales is reduced. However, unlike in the Higgs case, we observe that the uncertainty band derived from scale variation is no longer contained in the band of the previous order.
Topics & Concepts
PhysicsParticle physicsHiggs bosonLeptonCross section (physics)Perturbative QCDQuantum chromodynamicsVirtual particleHadronPair productionResidualCoupling constantOrder (exchange)Constant (computer programming)Coupling (piping)Scale (ratio)PhotonNuclear physicsElectronQuantum mechanicsAlgorithmComputer scienceProgramming languageMechanical engineeringEngineeringFinanceEconomicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research