Extraction of parton distributions from lattice QCD
W. Detmold, W. Melnitchouk, A.W. Thomas
TL;DR
This paper reviews how lattice QCD calculations of nucleon parton distribution moments can be extrapolated and reconstructed to understand the x dependence of valence quark distributions.
Contribution
It introduces methods for extrapolating lattice QCD moments to the physical region and reconstructing the x dependence of valence quark distributions.
Findings
Lattice QCD moments can be extrapolated to physical quark masses.
Reconstruction techniques enable x-dependent distributions from finite moments.
The approach enhances understanding of nucleon structure from first principles.
Abstract
We review the calculation of moments of both the polarized and unpolarized parton distribution functions of the nucleon in lattice QCD, and in particular their extrapolation to the physical region. We also discuss the reconstruction of the x dependence of the valence quark distributions in the nucleon from a finite number of lattice moments.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research