Electromagnetic form factors of Sigma(+) and Sigma(-) in the vector-meson dominance model
文献类型：期刊论文
| 作者 | Li, Zhong-Yi1,2; Xie, Ju-Jun1,2,3
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 73期号:5页码:5 |
| ISSN号 | 0253-6102 |
| 关键词 | Electromagnetic form factors Vector-meson dominance Hyperon-antihyperon pair production |
| DOI | 10.1088/1572-9494/abea0f |
| 通讯作者 | Xie, Ju-Jun(xiejujun@impcas.ac.cn) |
| 英文摘要 | Based on the recent measurements of the e(+) e(-) -> Sigma(+)Sigma(-)and e(+) e(-) -> Sigma(-)Sigma(+)processes by the Beijing Spectrometer III (BESIII) collaboration, the electromagnetic form factors of the hyperon Sigma(+) and Sigma(-) in the timelike region are investigated using the vector-meson dominance model, where the contributions of the rho, omega, and phi mesons are taken into account. The model parameters are determined from the BESIII experimental data of the timelike effective form factors vertical bar G(eff)vertical bar of the Sigma(+) and Sigma(-) baryons for center-of-mass energies from 2.3864 to 3.02 GeV. It is found that we can provide quantitative descriptions of the available data using as few as one adjustable model parameter. We then progress to an analysis of the electromagnetic form factors in the spacelike region and evaluate the spacelike form factors of the hyperons Sigma(+) and Sigma(-) . The electromagnetic form factors obtained for the Sigma(+) and Sigma(-) baryons are comparable with those of other model calculations. |
| 资助项目 | National Natural Science Foundation of China[12 075 288] ; National Natural Science Foundation of China[11 735 003] ; National Natural Science Foundation of China[11 961 141 012] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000632861200001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/137739]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xie, Ju-Jun |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhong-Yi,Xie, Ju-Jun. Electromagnetic form factors of Sigma(+) and Sigma(-) in the vector-meson dominance model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2021,73(5):5. |
| APA | Li, Zhong-Yi,&Xie, Ju-Jun.(2021).Electromagnetic form factors of Sigma(+) and Sigma(-) in the vector-meson dominance model.COMMUNICATIONS IN THEORETICAL PHYSICS,73(5),5. |
| MLA | Li, Zhong-Yi,et al."Electromagnetic form factors of Sigma(+) and Sigma(-) in the vector-meson dominance model".COMMUNICATIONS IN THEORETICAL PHYSICS 73.5(2021):5. |
入库方式： OAI收割
来源：近代物理研究所
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