Nucleon generalized parton distributions from full lattice QCD

2007/05/31 by Ph. Hägler, W. Schroers, Jonathan Bratt +19 · 5 citations
Physics and Astronomy · #Helicity #High-Energy Particle Collisions Research #Lattice QCD #Lattice field theory #Mathematical physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Renormalization #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.77.094502

published as Phys.Rev.D77:094502,2008 · 40 pages, 49 figures; Revised chiral extrapolations in sections A-K, main conclusions unchanged

openalex publication_date 2008/05/06 · arxiv created 2008/05/07 · arxiv updated 2015/03/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present a comprehensive study of the lowest moments of nucleon generalized parton distributions in N_f=2+1 lattice QCD using domain-wall valence quarks and improved staggered sea quarks. Our investigation includes helicity dependent and independent generalized parton distributions for pion masses as low as 350 MeV and volumes as large as (3.5 fm)³, for a lattice spacing of 0.124 fm. We use perturbative renormalization at one-loop level with an improvement based on the nonperturbative renormalization factor for the axial vector current, and only connected diagrams are included in the isosinglet channel.

Citations

• πandρstructure functions from lattice QCD
• A method for simulating chiral fermions on the lattice
• f(2010) in lattice QCD
• Generalized parton distributions
• Chiral perturbation theory for staggered sea quarks and Ginsparg-Wilson valence quarks
• Quark helicity flip generalized parton distributions from two-flavor lattice QCD
• Infinitely many regulator fields for chiral fermions
• Axial symmetries in lattice QCD with Kaplan fermions
• Generalized parton distributions with helicity flip
• Convergence of chiral effective field theory
• Parton distribution functions with twisted mass fermions
• Nucleon mass: From lattice QCD to the chiral limit
• Nucleon Axial Charge in Full Lattice QCD
• Two meson systems with Ginsparg-Wilson valence quarks
• Generalized parton distributions for the nucleon in chiral perturbation theory
• Chiral fermions from lattice boundaries
• N-to-ΔAxial Transition Form Factors from Lattice QCD

Cited by

• Interplay of Spin and Orbital Angular Momentum in the Proton
• Short-Range Correlations and the EMC Effect in Effective Field Theory
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Low-energy QCD and hadronic structure
• Helicity-dependent generalized parton distributions for nonzero skewness