STI Publications - View Publication Form #16327
| Back to Search Results |
Publication Information
| Title | Extraction of Next-to-Next-to-Leading-Order PDFs from Lattice QCD Calculations | ||||
| 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. | ||||
| Author(s) | Zheng-Yang Li, Yan-Qing Ma, Jian-Wei Qiu | ||||
| Publication Date | February 2021 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
|
||||
| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review Letters |
| Refereed | Yes |
| Volume | 126 |
| Issue | |
| Page(s) | 072001 |
Attachments/Datasets/DOI Link
| Document(s) |
latticePDFs_NNLO1.pdf
(STI Document)
PhysRevLett.126.072001.pdf
(Accepted Manuscript)
|
| DOI Link | |
| Dataset(s) | (none) |
| Back to Search Results |