Near-threshold photoproduction of J/psi in two-gluon exchange model
文献类型：期刊论文
| 作者 | Zeng, Fancong4; Wang, Xiao-Yun3,4; Zhang, Li3,4; Xie, Ya-Ping1,2 ; Wang, Rong1,2; Chen, Xurong1,2,5
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2020-11-06 |
| 卷号 | 80期号:11页码:6 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-020-08584-6 |
| 通讯作者 | Wang, Xiao-Yun(xywang@lut.edu.cn) |
| 英文摘要 | The near-threshold photoproduction of J/psi is regarded as one golden process to unveil the nucleon mass structure, pentaquark state involving the charm quarks, and the poorly constrained gluon distribution of the nucleon at large x (> 0.1). In this paper, we present an analysis of the current experimental data under a two-gluon exchange model, which shows a good consistency. Using a parameterized function form with three free parameters, we have determined the nucleonic gluon distribution at the J/psi mass scale. Moreover, we predict the differential cross-section of the electroproduction of J/psi as a function of the invariant mass of the final hadrons W, at EicC, as a practical application of the model and the obtained gluon distribution. According to our estimation, hundreds of J/psi events can be detected per year on EicC near the threshold. Therefore, the relevant experimental measurements are suggested to be carried out on EicC. |
| WOS关键词 | MESONS ; ELECTROPRODUCTION |
| 资助项目 | National Natural Science Foundation of China[11705076] ; National Natural Science Foundation of China[12065014] ; HongLiu Support Funds for Excellent Youth Talents of Lanzhou University of Technology |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000590065300001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; HongLiu Support Funds for Excellent Youth Talents of Lanzhou University of Technology |
| 源URL | [http://119.78.100.186/handle/113462/139467]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wang, Xiao-Yun |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China 4.Lanzhou Univ Technol, Lanzhou 730050, Peoples R China 5.South China Normal Univ, Inst Quantum Matter, Guangdong Prov Key Lab Nucl Sci, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Fancong,Wang, Xiao-Yun,Zhang, Li,et al. Near-threshold photoproduction of J/psi in two-gluon exchange model[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(11):6. |
| APA | Zeng, Fancong,Wang, Xiao-Yun,Zhang, Li,Xie, Ya-Ping,Wang, Rong,&Chen, Xurong.(2020).Near-threshold photoproduction of J/psi in two-gluon exchange model.EUROPEAN PHYSICAL JOURNAL C,80(11),6. |
| MLA | Zeng, Fancong,et al."Near-threshold photoproduction of J/psi in two-gluon exchange model".EUROPEAN PHYSICAL JOURNAL C 80.11(2020):6. |
入库方式： OAI收割
来源：近代物理研究所
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