Parton Distribution Function for Topological Charge at One Loop

Authors

Anatoly Radyushkin, Old Dominion UniversityFollow
Shuai Zhao, Old Dominion UniversityFollow

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)

Repository Citation

Radyushkin, Anatoly and Zhao, Shuai, "Parton Distribution Function for Topological Charge at One Loop" (2022). Physics Faculty Publications. 571.
https://digitalcommons.odu.edu/physics_fac_pubs/571