Publications
Publication Information
| Title | Gluon Transverse-Momentum-Dependent Distributions from Large-Momentum Effective Theory |
| Authors | Rui-Lin Zhu, Yao Ji, Jian-Hui Zhang, Shuai Zhao |
| JLAB number | JLAB-THY-22-3720 |
| LANL number | arXiv:2209.05443 |
| Other number | DOE/OR/23177-5612 |
| 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 2023 Issue 02 Page(s) 114 Refereed | |
| Publication Abstract: | We show that gluon transverse-momentum-dependent parton distribution functions (TMDPDFs) can be extracted from lattice calculations of appropriate Euclidean correlations in large-momentum effective theory (LaMET). Based on perturbative calculations of gluon unpolarized and helicity TMDPDFs, we present a factorization formula connecting them and their LaMET counterparts, where the latter are renormalized in a scheme that facilitates lattice calculations. The hard matching kernel is given up to one-loop level. We also show that the perturbative result is independent of the prescription used for the pinch-pole singularity in the relevant correlations. Our results offer a guidance for the extraction of gluon TMDPDFs from lattice simulations, and have the potential to greatly facilitate perturbative calculations of the hard matching kernel. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | http://dx.doi.org/10.1007/JHEP02(2023)114 |
| Accepted Manuscript: | JHEP02(2023)114.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |