Document Type

Article

Publication Date

2025

DOI

10.1103/qct5-y7rp

Publication Title

Physical Review Letters

Volume

135

Issue

26

Pages

261903

Abstract

We report the first global extraction of generalized parton distributions, GUMP 1.0, by combining deeply virtual Compton scattering and ρ-meson production data from Jefferson Lab and the Hadron-Electron Ring Accelerator with global fits of parton distribution functions, charge form factors, and lattice quantum chromodynamics simulations. Using a conformal moment space parametrization, we achieve a unified description across low- and high-x regions at next to leading order accuracy in perturbative corrections. The results provide state-of-the-art generalized parton distributions consistent with almost all known facts, enabling three-dimensional nucleon imaging in impact parameter space and, at the same time, establishing a benchmark for future theoretical and experimental studies of the nucleon structure.

Rights

© 2025 by the authors.

Published under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Data Availability

Article states: "The data that support the findings of this article are openly available [112]."

Original Publication Citation

Guo, Y., Aslan, F. P., Ji, X., & Santiago, M. G. (2025). First global extraction of generalized parton distributions from experiment and lattice data with next-to-leading-order accuracy. Physical Review Letters, 135(26), Article 261903. https://doi.org/10.1103/qct5-y7rp

ORCID

0000-0003-0770-6279 (Gabriel-Santiago)

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