Progress in computing parton distribution functions from the quasi-PDF approach

  • We discuss the current developments by the European Twisted Mass Collaboration in extracting parton distribution functions from the quasi-PDF approach. We concentrate on the non-perturbative renormalization prescription recently developed by us, using the RI′ scheme. We show results for the renormalization functions of matrix elements needed for the computation of quasi-PDFs, including the conversion to the MS scheme, and for renormalized matrix elements. We discuss the systematic effects present in the Z-factors and the possible ways of addressing them in the future.

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Author:Constantia AlexandrouORCiDGND, Krzysztof Cichy, Martha Constantinou, Kyriakos Hadjiyiannakou, Karl Jansen, Haralambos Panagopoulos, Aurora Scapellato, Fernanda Steffens
URN:urn:nbn:de:hebis:30:3-500065
DOI:https://doi.org/10.1051/epjconf/201817506021
ISSN:2100-014X
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Conference Proceeding
Language:English
Year of Completion:2018
Date of first Publication:2018/03/26
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:35th International Symposium on Lattice Field Theory (Lattice 2017)
Release Date:2019/04/04
Volume:175
Issue:Article Number 06021
Page Number:8
HeBIS-PPN:448536048
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0