Computation of parton distributions from the quasi-PDF approach at the physical point
- We show the first results for parton distribution functions within the proton at the physical pion mass, employing the method of quasi-distributions. In particular, we present the matrix elements for the iso-vector combination of the unpolarized, helicity and transversity quasi-distributions, obtained with Nf = 2 twisted mass cloverimproved fermions and a proton boosted with momentum = 0.83 GeV. The momentum smearing technique has been applied to improve the overlap with the proton boosted state. Moreover, we present the renormalized helicity matrix elements in the RI’ scheme, following the non-perturbative renormalization prescription recently developed by our group.
Author: | Constantia AlexandrouORCiDGND, Simone Bacchio, Krzysztof CichyORCiDGND, Martha Constantinou, Kyriakos Hadjiyiannakou, Karl Jansen, Giannis Koutsou, Aurora Scapellato, Fernanda Steffens |
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URN: | urn:nbn:de:hebis:30:3-492992 |
DOI: | https://doi.org/10.1051/epjconf/201817514008 |
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 14008 |
Page Number: | 8 |
HeBIS-PPN: | 448535807 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung 4.0 |