Evidence supporting the existence of P-c(4380)(+/-) from the recent measurements of B-s -> J=psi p(p)over-bar
文献类型：期刊论文
| 作者 | Wang, Jun-Zhang1,2,3; Liu, Xiang1,2,3,4,5; Matsuki, Takayuki6 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2021-12-16 |
| 卷号 | 104期号:11页码:9 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.104.114020 |
| 通讯作者 | Liu, Xiang(xiangliu@lzu.edu.cn) |
| 英文摘要 | Very recently, the LHCb collaboration released the newest measurements of B-s -> J=psi pp over bar , where an enhancement structure near 4.34 GeV was observed in the invariant mass spectrum of J=psi p with the statistical significance of 3.1-3.7 sigma. In this work, by performing a combined analysis for the three invariant mass spectra of Bs -> J=psi pp over bar , we find that this J=psi p structure near 4.34 GeV can correspond to the contributions from the Pc(4380)+ state with the assumption of J(P) = 3/2(-) together with the reflections of B-s -> (f*(2) -> pp over bar )J=psi. Here, P-c(4380) was first observed in A(b) -> J=psi pKbut not confirmed in the updated LHCb data in 2019, and f*(2) means the exciting light isoscalar tensor meson around 2.0 GeV. Thus, this provides a possible evidence to support the existence of the pentaquark Pc(4380). Specifically, the assumed spin parity J(P) = 3/2(-) of P-c(4380) is consistent with a prediction of the theoretical explanation of an S-wave over bar DEc* molecular bound state. |
| WOS关键词 | RESONANCE MODEL ; MESON ; PENTAQUARK |
| 资助项目 | China National Funds for Distinguished Young Scientists[11825503] ; National Key Research and Development Program of China[2020YFA0406400] ; 111 Project[B20063] ; National Natural Science Foundation of China[12047501] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000753702800001 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | China National Funds for Distinguished Young Scientists ; National Key Research and Development Program of China ; 111 Project ; National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/142111]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Xiang |
| 作者单位 | 1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, Lanzhou, Peoples R China 5.Lanzhou Univ, Frontier Sci Ctr Rare Isotopes, Lanzhou 730000, Peoples R China 6.Tokyo Kasei Univ, I-18-1 Kaga, Tokyo, Tokyo 1738602, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Jun-Zhang,Liu, Xiang,Matsuki, Takayuki. Evidence supporting the existence of P-c(4380)(+/-) from the recent measurements of B-s -> J=psi p(p)over-bar[J]. PHYSICAL REVIEW D,2021,104(11):9. |
| APA | Wang, Jun-Zhang,Liu, Xiang,&Matsuki, Takayuki.(2021).Evidence supporting the existence of P-c(4380)(+/-) from the recent measurements of B-s -> J=psi p(p)over-bar.PHYSICAL REVIEW D,104(11),9. |
| MLA | Wang, Jun-Zhang,et al."Evidence supporting the existence of P-c(4380)(+/-) from the recent measurements of B-s -> J=psi p(p)over-bar".PHYSICAL REVIEW D 104.11(2021):9. |
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来源：近代物理研究所
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