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Neural-network analysis of Parton Distribution Functions from Ioffe-time pseudodistributions

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  • Published: 16 February 2021
  • Volume 2021, article number 138, (2021)
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Journal of High Energy Physics Aims and scope Submit manuscript
Neural-network analysis of Parton Distribution Functions from Ioffe-time pseudodistributions
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  • Luigi Del Debbio1,
  • Tommaso Giani  ORCID: orcid.org/0000-0001-7135-67311,
  • Joseph Karpie2,
  • Kostas Orginos3,4,
  • Anatoly Radyushkin3,5 &
  • …
  • Savvas Zafeiropoulos6 

  • 326 Accesses

  • 37 Citations

  • 1 Altmetric

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A preprint version of the article is available at arXiv.

Abstract

We extract two nonsinglet nucleon Parton Distribution Functions from lattice QCD data for reduced Ioffe-time pseudodistributions. We perform such analysis within the NNPDF framework, considering data coming from different lattice ensembles and dis- cussing in detail the treatment of the different source of systematics involved in the fit. We introduce a recipe for taking care of systematics and use it to perform our extraction of light-cone PDFs.

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Authors and Affiliations

  1. The Higgs Centre for Theoretical Physics, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, U.K.

    Luigi Del Debbio & Tommaso Giani

  2. Physics Department, Columbia University, 538 West 120th Street, New York City, NY, 10027, USA

    Joseph Karpie

  3. Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA

    Kostas Orginos & Anatoly Radyushkin

  4. Physics Department, William & Mary, 300 Ukrop Way, Williamsburg, VA, 23187, USA

    Kostas Orginos

  5. Physics Department, Old Dominion University, 4600 Elkhorn Ave, Norfolk, VA, 23529, USA

    Anatoly Radyushkin

  6. Aix Marseille Univ., Université de Toulon, CNRS, CPT, Marseille, France

    Savvas Zafeiropoulos

Authors
  1. Luigi Del Debbio
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  2. Tommaso Giani
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  3. Joseph Karpie
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  4. Kostas Orginos
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Corresponding author

Correspondence to Tommaso Giani.

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ArXiv ePrint: 2010.03996

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Del Debbio, L., Giani, T., Karpie, J. et al. Neural-network analysis of Parton Distribution Functions from Ioffe-time pseudodistributions. J. High Energ. Phys. 2021, 138 (2021). https://doi.org/10.1007/JHEP02(2021)138

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  • Received: 16 October 2020

  • Revised: 21 December 2020

  • Accepted: 04 January 2021

  • Published: 16 February 2021

  • DOI: https://doi.org/10.1007/JHEP02(2021)138

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Keywords

  • Lattice field theory simulation
  • QCD Phenomenology
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