Document Type

Article

Publication Date

2022

DOI

10.1007/JHEP02(2022)163

Publication Title

Journal of High Energy Physics

Volume

163

Pages

163 (1-14)

Abstract

We present results for the gg-part of the one-loop corrections to the recently introduced “topological charge” GPD ~F(x, q2). In particular, we give expression for its evolution kernel. To enforce strict compliance with the gauge invariance requirements, we have used on-shell states for external gluons, and have obtained identical results both in Feynman and light-cone gauges. No “zero mode” δ(x) terms were found for the twist-4 gluon GPD ~F(x, q2).

Comments

This article is distributed under the terms of the Creative Commons Attribution 4.0 International (CC-BY 4.0) License, which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Original Publication Citation

Radyushkin, A., & Zhao, S. (2022). Parton distribution function for topological charge at one loop. Journal of High Energy Physics, 163, 1-14, Article 163. https://doi.org/10.1007/JHEP02(2022)163

ORCID

0000-0002-9326-1300 (Radyushkin)

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