Parton distribution functions from Ioffe time pseudo-distributions

Bálint Joó, Joseph Karpie, Kostas Orginos, Anatoly Radyushkin, David Richards, Savvas Zafeiropoulos

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Abstract

In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution func- tions. We perform a systematic analysis using three lattice ensembles at two volumes, with lattice spacings a = 0.127 fm and a = 0.094 fm, for a pion mass of roughly 400 MeV. With two lattice spacings and two volumes, both continuum limit and infinite volume ex- trapolation systematic errors of the PDF are considered. In addition to the x dependence of the PDF, we compute their first two moments and compare them with the pertinent phenomenological determinations.

Original languageEnglish
Article number81
JournalJournal of High Energy Physics
Volume2019
Issue number12
DOIs
StatePublished - Dec 1 2019
Externally publishedYes

Funding

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

FundersFunder number
Creative Commons Attribution License

    Keywords

    • Lattice QCD
    • Lattice Quantum Field Theory

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