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Lattice calculation of parton distributions

Authors:

  • Constantia Alexandrou,
  • Krzysztof Michał Cichy,
  • Vincent Drach,
  • Elena Garcia-Ramos,
  • Kyriakos Hadjiyiannakou,
  • Karl Jansen,
  • Fernanda Steffens,
  • Christian Wiese

Abstract

We report on our exploratory study for the direct evaluation of the parton distribution functions from lattice QCD, based on a recently proposed new approach. We present encouraging results using N f = 2 + 1 + 1 twisted mass fermions with a pion mass of about 370 MeV. The focus of this work is a detailed description of the computation, including the lattice calculation, the matching to an infinite momentum and the nucleon mass correction. In addition, we test the effect of gauge link smearing in the operator to estimate the influence of the Wilson line renormalization, which is yet to be done.

Metrics

Record ID
UAM5716eb3dffa74c54b56c62b76336a134
Author
Constantia Alexandrou Constantia Alexandrou,, External affiliation of publication: University of Cyprus, Krzysztof Michał Cichy Krzysztof Michał Cichy,, , Vincent Drach Vincent Drach,, External affiliation of publication: Syddansk Universitet, Elena Garcia-Ramos Elena Garcia-Ramos,, External affiliation of publication: Forschungszentrum Jülich (FZJ), Kyriakos Hadjiyiannakou Kyriakos Hadjiyiannakou,, External affiliation of publication: University of Cyprus, Karl Jansen Karl Jansen,, External affiliation of publication: Forschungszentrum Jülich (FZJ), Fernanda Steffens Fernanda Steffens,, External affiliation of publication: Forschungszentrum Jülich (FZJ), Christian Wiese Christian Wiese,, External affiliation of publication: Forschungszentrum Jülich (FZJ)
Journal series
Physical Review D, ISSN 1550-7998
Issue year
2015
Vol
92
ASJC Classification
3106 Nuclear and High Energy Physics
DOI
DOI:10.1103/PhysRevD.92.014502 opening in a new tab
Language
en English
Score (nominal)
35
Score source
journalList
Score
Publication indicators
Scopus Citations = 94.000; Scopus SNIP: 2015 = 1.316; WoS Impact Factor: 2014 = 4.643 (2) - 2014=3.865 (5)

Cite

Uniform Resource Identifier
https://researchportal.amu.edu.pl/info/article/UAM5716eb3dffa74c54b56c62b76336a134/

* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perishopening in a new tab system.

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