Interpretation of the eta(1) (1855) as a KK1(1400) + c.c. molecule
文献类型：期刊论文
| 作者 | Dong, Xiang-Kun; Lin, Yong-Hui; Zou, Bing-Song
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2022 |
| 卷号 | 65期号:6页码:261011 |
| ISSN号 | 1674-7348 |
| 关键词 | AXIAL-VECTOR QUARK-MODEL DECAYS PENTAQUARK DEUTERON MESONS |
| DOI | 10.1007/s11433-022-1887-5 |
| 英文摘要 | An exotic state with J(PC) = 1(-+), denoted by eta(1)(1855), was observed by BESIII Collaboration recently in J/psi -> gamma eta eta '. The fact that its mass is just below the threshold of KK1(1400) stimulates us to investigate whether this exotic state can be interpreted as a KK1(1400) + c.c. molecule or not. Using the one boson exchange model, we show that it is possible for KK1(1400) with J(PC) = 1(-+) to bind together by taking the momentum cutoff ? greater than or similar to 2 GeV and yield the same binding energy as the experimental value when ? approximate to 2.5 GeV. In this molecular picture, the predicted branch ratio Br(eta(1)(1855) -> eta eta ') approximate to 15% is consistent with the experimental results, which again supports the molecular explanation of eta(1)(1855). Relevant systems, namely KK1(1400) with J(PC) = 1(--) and KK1(1270) with J(PC) = 1(-+/-), are also investigated, some of which can be searched for in the future experiments. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27778]  |
| 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.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 2.[Dong, Xiang-Kun 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 6.Cent South Univ, Sch Phys, Changsha 410083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Xiang-Kun,Lin, Yong-Hui,Zou, Bing-Song. Interpretation of the eta(1) (1855) as a KK1(1400) + c.c. molecule[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2022,65(6):261011. |
| APA | Dong, Xiang-Kun,Lin, Yong-Hui,&Zou, Bing-Song.(2022).Interpretation of the eta(1) (1855) as a KK1(1400) + c.c. molecule.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,65(6),261011. |
| MLA | Dong, Xiang-Kun,et al."Interpretation of the eta(1) (1855) as a KK1(1400) + c.c. molecule".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 65.6(2022):261011. |
入库方式： OAI收割
来源：理论物理研究所
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