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Article Dans Une Revue Physical Review Letters Année : 2020

Parton Distribution Functions from Ioffe Time Pseudodistributions from Lattice Calculations: Approaching the Physical Point

Bálint Joó
  • Fonction : Auteur
Joseph Karpie
  • Fonction : Auteur
Kostas Orginos
  • Fonction : Auteur
Anatoly V. Radyushkin
  • Fonction : Auteur
David G. Richards
  • Fonction : Auteur

Résumé

We present results for the unpolarized parton distribution function of the nucleon computed in lattice QCD at the physical pion mass. This is the first study of its kind employing the method of Ioffe time pseudodistributions. Beyond the reconstruction of the Bjorken-x dependence, we also extract the lowest moments of the distribution function using the small Ioffe time expansion of the Ioffe time pseudodistribution. We compare our findings with the pertinent phenomenological determinations.

Dates et versions

hal-02550170 , version 1 (22-04-2020)

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Citer

Bálint Joó, Joseph Karpie, Kostas Orginos, Anatoly V. Radyushkin, David G. Richards, et al.. Parton Distribution Functions from Ioffe Time Pseudodistributions from Lattice Calculations: Approaching the Physical Point. Physical Review Letters, 2020, 125 (23), pp.232003. ⟨10.1103/PhysRevLett.125.232003⟩. ⟨hal-02550170⟩
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