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<p>Reconstructing Mellin moments of double parton distributions from calculations on a Euclidean lattice requires taking an integral over a variable that may be regarded as a Ioffe time. The Fourier conjugate of this variable plays the role of a kinematic skewness in the double parton distributions. We discuss the skewness dependence of the relevant hadronic correlation functions. Using several models, we study the impact of this dependence on extracting moments of double parton distributions from existing lattice data.</p>

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Extracting Mellin moments of double parton distributions from lattice data

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月4日

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  • Markus Diehl,
  • Oskar Grocholski,
  • Daniel Reitinger,
  • Andreas Schäfer,
  • Christian Zimmermann

摘要

Reconstructing Mellin moments of double parton distributions from calculations on a Euclidean lattice requires taking an integral over a variable that may be regarded as a Ioffe time. The Fourier conjugate of this variable plays the role of a kinematic skewness in the double parton distributions. We discuss the skewness dependence of the relevant hadronic correlation functions. Using several models, we study the impact of this dependence on extracting moments of double parton distributions from existing lattice data.