Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums | |
Wang, Xiao-Yun1,2; Zeng, Fancong1; Wang, Quanjin1 | |
刊名 | PHYSICAL REVIEW D |
2022-05-27 | |
卷号 | 105期号:9 |
ISSN号 | 2470-0010 |
DOI | 10.1103/PhysRevD.105.096033 |
英文摘要 | In this work, the cross section of the reaction ??p ??? V(J/??; ??(2S))p from the production threshold to medium energy is studied and systematically analyzed within two gluon exchange model. The obtained numerical results are in agreement with experimental data and other theoretical predictions. Under the assumption of the scalar form factor of dipole form, the value of proton mass radius is calculated as 0.55 ?? 0.09 fm and 0.77 ?? 0.12 fm from the fit to the predicted J/?? and ??(2S) differential cross section, respectively. Finally, the average value of proton mass radius is estimated to be (R2m) = 0.67 ?? 0.11 fm. Moreover, one finds that extracting mass radius from the near-threshold differential cross section of heavy quarkoniums is always affected by large ItImin. These obtained results may provide important theoretical reference for the understanding of nucleon structure and future relevant experiments. |
WOS研究方向 | Astronomy & Astrophysics ; Physics |
语种 | 英语 |
出版者 | AMER PHYSICAL SOC |
WOS记录号 | WOS:000809432500013 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/158888] |
专题 | 理学院 兰州理工大学 |
作者单位 | 1.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xiao-Yun,Zeng, Fancong,Wang, Quanjin. Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums[J]. PHYSICAL REVIEW D,2022,105(9). |
APA | Wang, Xiao-Yun,Zeng, Fancong,&Wang, Quanjin.(2022).Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums.PHYSICAL REVIEW D,105(9). |
MLA | Wang, Xiao-Yun,et al."Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums".PHYSICAL REVIEW D 105.9(2022). |
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