Publications
Publication Information
| Title | Extraction of Next-to-Next-to-Leading-Order PDFs from Lattice QCD Calculations |
| Authors | Zheng-Yang Li, Yan-Qing Ma, Jian-Wei Qiu |
| JLAB number | JLAB-THY-20-3214 |
| LANL number | 2006.12370 |
| Other number | DOE/OR/23177-4991 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review Letters Volume 126 Page(s) 072001 Refereed | |
| Publication Abstract: | We define quark correlation functions that are not only calculable in lattice QCD, but also factorizable into parton distribution functions with coefficients perturbatively calculable to all orders in QCD with a proper regularization. We present for the first time the complete next-to-next-to-leading-order calculation of valence-quark coefficient functions. We find that theoretical uncertainties are improving with higher order coefficients. Our method of calculations can be readily generalized to evaluate gluon correlation functions, and high order sea-quark matching coefficients, putting the program to extract partonic structure of hadrons from lattice QCD calculations to be comparable with that from experimental measurements. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevLett.126.072001 |
| Accepted Manuscript: | PhysRevLett.126.072001.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |