Isospin violating decays of vector charmonia
文献类型：期刊论文
| 作者 | Geng, Chao-Qiang; Liu, Chia-Wei; Zhang, Jiabao3 |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2023 |
| 卷号 | 83期号:10页码:973 |
| ISSN号 | 1434-6044 |
| 关键词 | BARYON J/PSI |
| DOI | 10.1140/epjc/s10052-023-12099-1 |
| 英文摘要 | We study the isospin violating decays of vector charmonia to Lambda(Sigma) over bar (0) and its charge conjugate. They are dominated by the single photon annihilation and can be evaluated reliably with timelike form factors. We utilize the quark-pair creationmodel, which is valid for the OZI suppressed decays, to evaluate the form factors. We obtain the branching fractions of B(J/psi -> Lambda(Sigma) over bar (0) + c.c.) = (2.4 +/- 0.4) x 10(-5) and B(psi(2 S) -> Lambda(Sigma) over bar (0) + c.c.) = (3.0 +/- 0.5) x10(-6), which are compatible with the measurements by the BESIII collaborations, respectively. The decay asymmetries are found to be alpha(J/psi) = 0.314 and alpha(psi(2S)) = 0.461, which can be examined at BESIII in the foreseeable future. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/28008]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.UCAS, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China 2.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China 4.Univ Chinese Acad Sci UCAS, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Chao-Qiang,Liu, Chia-Wei,Zhang, Jiabao. Isospin violating decays of vector charmonia[J]. EUROPEAN PHYSICAL JOURNAL C,2023,83(10):973. |
| APA | Geng, Chao-Qiang,Liu, Chia-Wei,&Zhang, Jiabao.(2023).Isospin violating decays of vector charmonia.EUROPEAN PHYSICAL JOURNAL C,83(10),973. |
| MLA | Geng, Chao-Qiang,et al."Isospin violating decays of vector charmonia".EUROPEAN PHYSICAL JOURNAL C 83.10(2023):973. |
入库方式： OAI收割
来源：理论物理研究所
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