Moments of Ioffe time parton distribution functions from non-local matrix elements

• Verfasst von: Karpie, Joseph [VerfasserIn]
• Verfasst von: Orginos, Kostas [VerfasserIn]
• Verfasst von: Zafeiropoulos, Savvas [VerfasserIn]
• Titel: Moments of Ioffe time parton distribution functions from non-local matrix elements
• Verf.angabe: Joseph Karpie, Kostas Orginos and Savvas Zafeiropoulos
• E-Jahr: 2018
• Jahr: 28 November 2018
• Umfang: 13 S.
• Fussnoten: Gesehen am 09.12.2019
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018,11) Artikel-Nummer 178, 13 Seiten
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP11(2018)178
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Lattice QCD
• Sach-SW: Lattice Quantum Field Theory
• K10plus-PPN: 1684855896

Abstract

We examine the relation of moments of parton distribution functions to matrix elements of non-local operators computed in lattice quantum chromodynamics. We argue that after the continuum limit is taken, these non-local matrix elements give access to moments that are finite and can be matched to those defined in the MS scheme. We demonstrate this fact with a numerical computation of moments through non-local matrix elements in the quenched approximation and we find that these moments are in agreement with the moments obtained from direct computations of local twist-2 matrix elements in the quenched approximation.