Publications
Publication Information
| Title | Exploring J/psi Production Mechanism at the Future Electron-Ion Collider |
| Authors | Jianwei Qiu, Xiang-Peng Wang, Hongxi Xing |
| JLAB number | JLAB-THY-21-3466 |
| LANL number | (None) |
| Other number | DOE/OR/23177-5297 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | AC02-06CH11357 |
|
Journal Compiled for Chinese Physics Letters Volume 38 Page(s) 041201 Refereed | |
| Publication Abstract: | We propose to use transverse momentum pT distribution of J/psi production at the future Electron Ion Collider (EIC) to explore the production mechanism of heavy quarkonia in high energy collisions. We apply QCD and QED collinear factorization to the production of a $c\bar{c}$ pair at high pT, and non-relativistic QCD factorization to the hadronization of the pair to a J/psi. We evaluate J/psi pT-distribution at both leading and next-to-leading order in strong coupling, and show that production rates for various color-spin channels of a $c\bar{c}$ pair in electron-hadron collisions are very different from that in hadron-hadron collisions, which provides a strong discriminative power to determine various transition rates for the pair to become a J/psi. We predict that the J/psi produced in electron-hadron collisions is likely unpolarized, and the production is an ideal probe for gluon distribution of colliding hadron (or nucleus). We find that the J/psi production is dominated by the color-octet channel, providing an excellent probe to explore the gluon medium in large nuclei at the EIC. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1088/0256-307X/38/4/041201 |
| Accepted Manuscript: | lp-jpsi-0322-cpl_v3.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |