Progress in computing parton distribution functions from the quasi-PDF approach
Department of Physics, University of Cyprus, POB 20537, 1678 Nicosia, Cyprus
2 The Cyprus Institute, 20 Kavafi Str., Nicosia 2121, Cyprus
3 Goethe-Universität Frankfurt am Main, Institut für Theoretische Physik, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
4 Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
5 Department of Physics, Temple University, Philadelphia, PA 19122 - 1801, USA
6 John von Neumann Institute for Computing (NIC), DESY, Platanenallee 6, 15738 Zeuthen, Germany
7 University of Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
* Speaker, e-mail: firstname.lastname@example.org
Published online: 26 March 2018
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.
© The Authors, published by EDP Sciences, 2018
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