Neural-network analysis of Parton Distribution Functions from Ioffe-time pseudodistributions
Luigi Del Debbio, Tommaso Giani, Joseph Karpie, Kostas Orginos, Anatoly Radyushkin, Savvas Zafeiropoulos
Abstract
A bstract We extract two nonsinglet nucleon Parton Distribution Functions from lattice QCD data for reduced Ioffe-time pseudodistributions. We perform such analysis within the NNPDF framework, considering data coming from different lattice ensembles and dis- cussing in detail the treatment of the different source of systematics involved in the fit. We introduce a recipe for taking care of systematics and use it to perform our extraction of light-cone PDFs.
Topics & Concepts
PartonPhysicsParticle physicsLattice QCDLattice field theoryQuantum chromodynamicsLattice (music)Distribution functionNucleonSystematicsDistribution (mathematics)Statistical physicsTheoretical physicsRenormalizationFormalism (music)Nuclear physicsStructure functionExtraction (chemistry)Monte Carlo methodQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesNuclear physics research studies