Quasitransverse momentum dependent distributions at next-to-next-to-leading order
Óscar del Río, Alexey Vladimirov
Abstract
The partons' transverse momentum can be explored with QCD lattice simulations by studying the quasitransverse-momentum-dependent parton distribution functions (qTMDPDFs), which are factorized in terms of physical TMDPDFs and soft factors in the limit of the large hadron's momentum. We present the next-to-next-to-leading order (NNLO) calculation of the coefficient function for this factorization. Together with already known expressions for anomalous dimensions, this result allows analysis of lattice data at NNLO perturbative accuracy.
Topics & Concepts
PartonPhysicsFactorizationParticle physicsHadronLattice QCDQuantum chromodynamicsLattice (music)Perturbative QCDMomentum (technical analysis)Distribution functionWeierstrass factorization theoremLimit (mathematics)Quantum electrodynamicsStatistical physicsQuantum mechanicsMathematicsMathematical analysisEconomicsAlgorithmFinanceAcousticsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research