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Moments of Ioffe time parton distribution functions from non-local matrix elements

Journal of High Energy Physics volume 2018, Article number: 178 (2018) Cite this article

A preprint version of the article is available at arXiv.

Abstract

We examine the relation of moments of parton distribution functions to matrix elements of non-local operators computed in lattice quantum chromodynamics. We argue that after the continuum limit is taken, these non-local matrix elements give access to moments that are finite and can be matched to those defined in the \( \overline{MS} \) scheme. We demonstrate this fact with a numerical computation of moments through non-local matrix elements in the quenched approximation and we find that these moments are in agreement with the moments obtained from direct computations of local twist-2 matrix elements in the quenched approximation.

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Authors and Affiliations

  1. Department of Physics, The College of William & Mary, Williamsburg, VA, 23187, U.S.A.

    Joseph Karpie & Kostas Orginos

  2. Thomas Jefferson National Accelerator Facility, Newport News, VA, 23606, U.S.A.

    Joseph Karpie & Kostas Orginos

  3. Institute for Theoretical Physics, Heidelberg University, Philosophenweg 12, 69120, Heidelberg, Germany

    Savvas Zafeiropoulos

Authors
  1. Joseph Karpie
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  2. Kostas Orginos
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  3. Savvas Zafeiropoulos
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Correspondence to Savvas Zafeiropoulos.

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ArXiv ePrint: 1807.10933

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Karpie, J., Orginos, K. & Zafeiropoulos, S. Moments of Ioffe time parton distribution functions from non-local matrix elements. J. High Energ. Phys. 2018, 178 (2018). https://doi.org/10.1007/JHEP11(2018)178

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  • DOI: https://doi.org/10.1007/JHEP11(2018)178

Keywords

  • Lattice QCD
  • Lattice Quantum Field Theory