Nucleon average quark momentum fraction with Nf = 2+1 Wilson fermions
- Publication type:
- Conference
- Metadata:
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- Abstract
- We report on an analysis of the average quark momentum fraction of the nucleon and related quantities using Nf = 2 + 1 Wilson fermions. Computations are performed on four CLS ensembles covering three values of the lattice spacing at pion masses down to Mπ ≈ 200 MeV. Several source-sink separations (~ 1:0 fm to ~ 1:4 fm) are used to assess the excited-state contamination. To gain further insight, the generalized pencil-of-functions approach has been implemented to reduce the excited-state contamination in the relevant two-and three-point functions. Preliminary results are shown for the isovector nucleon charges from vector, axial vector and tensor derivative (twist-2) operators.
- Autoren
- Harvey Meyer
- Konstantin Ottnad
- Tim Harris
- Georg von Hippel
- Jonas Wilhelm
- Hartmut Wittig
- Autoren-URL
- https://researchelements.uni-mainz.de/userprofile.html?uid=173
- DOI
- 10.1051/epjconf/201817506026
- Conference finish date
- 2017
- Zeitschrift
- Proceedings, 35th International Symposium on Lattice Field Theory (Lattice 2017) : Granada, Spain, June 18-24, 2017
- Conference place
- Granada Spain
- Name of conference
- Lattice 2017
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Herausgeber
- EPJ Web Conf. 175 (2018) 06026
- Herausgeber URL
- https://www.epj-conferences.org/articles/epjconf/abs/2018/10/epjconf_lattice2018_06026/epjconf_lattice2018_06026.html
- Datum der Datenerfassung
- 2023
- Conference start date
- 2017
- Titel
- Nucleon average quark momentum fraction with Nf = 2+1 Wilson fermions
- Ausgabe der Zeitschrift
- 175
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