Publications
Publication Information
| Title | Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory |
| Authors | F. He, Chueng-Ryong Ji, Wolodymyr Melnitchouk, Anthony Thomas, Ping Wang |
| JLAB number | JLAB-THY-22-3553 |
| LANL number | arXiv:2202.00266 |
| Other number | DOE/OR/23177-5410, ADP-22-1/T1172 |
| 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 D Volume 106 Page(s) 054006 Refereed | |
| Publication Abstract: | We calculate the spin-averaged generalized parton distributions (GPDs) of sea quarks in the proton at zero skewness from nonlocal covariant chiral effective theory, including one-loop contributions from intermediate states with pseudoscalar mesons and octet and decuplet baryons. A relativistic regulator is generated from the nonlocal Lagrangian where a gauge link is introduced to guarantee local gauge invariance, with additional diagrams from the expansion of the gauge link ensuring conservation of electric charge and strangeness. Flavor asymmetries for sea quarks at zero and finite momentum transfer, as well as strange form factors, are obtained from the calculated GPDs, and results compared with phenomenological extractions and lattice QCD. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.106.054006 |
| Accepted Manuscript: | PhysRevD.106.054006.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |