@article{2ace4b6796f8483f807d44240c30653d,
title = "Moments of nucleon unpolarized, polarized, and transversity parton distribution functions from lattice QCD at the physical point",
abstract = "The",
author = "Marcel Rodekamp and Michael Engelhardt and Green, \{Jeremy R.\} and Stefan Krieg and Simonetta Liuti and Stefan Meinel and Negele, \{John W.\} and Andrew Pochinsky and Sergey Syritsyn",
note = "Publisher Copyright: {\textcopyright} of the nucleon's unpolarized, polarized, and transversity parton distribution functions are computed. Two lattice QCD ensembles at the physical pion mass are used: these were generated using a tree-level Symanzik-improved gauge action and 2+1 flavor tree-level improved Wilson Clover fermions coupling via 2-level HEX-smearing. The moments are extracted from forward matrix elements of local leading twist operators. We determine renomalization factors in RI-(S)MOM and match to MS¯ at scale 2 GeV. Our findings show that operators that exhibit vanishing kinematics at zero momentum can have significantly reduced excited-state contamination. The resulting polarized moment is used to quantify the longitudinal contribution to the quark spin-orbit correlation. All our results agree within two sigma with previous lattice results. ",
year = "2024",
month = apr,
day = "1",
doi = "10.1103/PhysRevD.109.074508",
language = "English",
volume = "109",
journal = "Physical Review D",
issn = "2470-0010",
number = "7",
}