Publications
Publication Information
| Title | One-loop structure of parton distribution for the gluon condensate and ``zero modes'' |
| Authors | Anatoly Radyushkin, Shuai Zhao |
| JLAB number | JLAB-THY-21-3520 |
| LANL number | (None) |
| Other number | DOE/OR/23177-5393 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Journal of High Energy Physics Volume 12 Issue 2021 Page(s) 10 Refereed | |
| Publication Abstract: | We present results for one-loop corrections to the 'gluon condensate' PDF F(x) introduced by X. Ji. 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'' \delta (x)$ terms were found for the twist-4 gluon PDF F(x). However a q^2 \delta (x) term was found for the \xi=0 GPD F(x,q^2) at nonzero momentum transfer q. Overall, our result is in drastic disagreement with an earlier attempt of one-loop calculation for F(x), which sets alarm warning for lattice renormalization procedures that use matrix elements with highly virtual external gluons. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1007/JHEP12(2021)010 |
| Accepted Manuscript: | JHEP12(2021)010.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |