Heavy molecules and one-sigma/omega-exchange model
文献类型：期刊论文
| 作者 | Chen, Rui1,2,3,4; Hosaka, Atsushi4; Liu, Xiang1,2,3 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2017-12-18 |
| 卷号 | 96页码:8 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.96.116012 |
| 英文摘要 | In the framework of the one-boson-exchange model, we explore whether the intermediate- and short-range forces from sigma/omega exchange can be strong enough to bind heavy molecular states Lambda D-c((D) over bar) and Lambda(c)Lambda(c)((Lambda) over bar (c)) systems have been studied and compared. We find that the force from sigma exchange is attractive and dominant, whereas the omega-exchange force is not. As a consequence, the S-wave Lambda D-c, Lambda(c)Lambda(c), and Lambda(c)(Lambda) over bar (c) can be possible molecular candidates. We further indicate that a one hadron-hadron system with more light quarks (u, d) can be easier to form than a bound state. As a by-product, by studying the heavy-quark mass dependence for the Lambda D-c((D) over bar)-like and Lambda(c)Lambda(c)((Lambda) over bar (c))-like systems, we find that the charm/bottom sector can easily accommodate molecular states. Finally, the Lambda N-c((N) over bar) and Lambda N-b((N) over bar) systems are investigated. Our results indicate that they are also likely to form bound states. By including one-pi-exchange forces, providing additional attraction when coupled channels are included, we expect many molecular states in heavy-quark sectors. |
| WOS关键词 | NUCLEON NUCLEON-INTERACTION ; MESON BOUND-STATES ; PENTAQUARK ; DEUSONS |
| 资助项目 | National Natural Science Foundation of China[11222547] ; National Natural Science Foundation of China[11175073] ; National Natural Science Foundation of China[11647301] ; Fundamental Research Funds for the Central Universities ; National Program for Support of Top-Notch Young Professionals ; China Scholarship Council ; [JPK05441(c)] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000418202000004 |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Program for Support of Top-Notch Young Professionals ; China Scholarship Council |
| 源URL | [http://119.78.100.186/handle/113462/46096]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Rui; Hosaka, Atsushi; Liu, Xiang |
| 作者单位 | 1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 4.Osaka Univ, RCNP, Ibaraki, Osaka 5670047, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Rui,Hosaka, Atsushi,Liu, Xiang. Heavy molecules and one-sigma/omega-exchange model[J]. PHYSICAL REVIEW D,2017,96:8. |
| APA | Chen, Rui,Hosaka, Atsushi,&Liu, Xiang.(2017).Heavy molecules and one-sigma/omega-exchange model.PHYSICAL REVIEW D,96,8. |
| MLA | Chen, Rui,et al."Heavy molecules and one-sigma/omega-exchange model".PHYSICAL REVIEW D 96(2017):8. |
入库方式： OAI收割
来源：近代物理研究所
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