Journal of High Energy Physics
In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution functions. 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 extrapolation 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 Publication Citation
Joó, B., Karpie, J., Orginos, K., Radyushkin, A., Richards, D., & Zafeiropoulos, S. (2019). Parton distribution functions from ioffe time pseudo-distributions. Journal of High Energy Physics, 2019(12), 81. doi:10.1007/JHEP12(2019)081
Joó, Bálint; Karpie, Joseph; Orginos, Kostas; Radyushkin, Anatoly V.; Richards, David; and Zafeiropoulos, Savvas, "Parton Distribution Functions From Loffe Time Pseudo-Distributions" (2019). Physics Faculty Publications. 407.