Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay
文献类型：期刊论文
| 作者 | Wang, En1; Chen, Hua-Xing2,3; Geng, Li-Sheng2,3,4; Li, De-Min1; Oset, Eulogio5,6,7 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2016-05-03 |
| 卷号 | 93页码:10 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.93.094001 |
| 英文摘要 | We study here the A(b)(0) -> J/psi p pi(-) reaction in analogy to the A(b)(0) -> J/psi pK(-) one, and we note that in both decays there is a sharp structure (dip or peak) in the J/psi p mass distribution around 4450 MeV, which is associated in the A(b)(0) -> J/psi pK(-) experiment to an exotic pentaquark baryonic state, although in J/psi p pi(-) it shows up with relatively low statistics. We analyze the A(b)(0) -> J/psi p pi(-) interaction along the same lines as the A(b)(0) -> J/psi pK(-) one, with the main difference stemming from the reduced Cabibbo strength in the former and the consideration of the pi(-)p final state interaction instead of the K(-)p one. We find that with a minimal input, introducing the pi(-)p and J/psi p interaction in S-wave with realistic interactions, and the empirical P-wave and D-wave contributions, one can accomplish a qualitative description of the pi(-)p and J/psi p mass distributions. More importantly, the peak structure followed by a dip of the experimental J/psi p mass distribution is reproduced with the same input as used to describe the data of A(b)(0) -> J/psi pK(-) reaction. The repercussion for the triangular singularity mechanism, invoked in some works to explain the pentaquark peak, is discussed. |
| WOS关键词 | BARYON RESONANCES ; DIQUARK MODEL ; MESON ; P-C(4450) |
| 资助项目 | Chinese Academy of Science (CAS)[2013T2J] ; National Natural Science Foundation of China[11375024] ; National Natural Science Foundation of China[11522539] ; National Natural Science Foundation of China[11505158] ; National Natural Science Foundation of China[11475015] ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds[FIS2011-28853-C02-01] ; European FEDER funds[FIS2011-28853-C02-02] ; Generalitat Valenciana[Prometeo II-2014/068] ; China Postdoctoral Science Foundation[2015M582197] ; Postdoctoral Research Sponsorship in Henan Province[2015023] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU[283286] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000375655000003 |
| 资助机构 | Chinese Academy of Science (CAS) ; National Natural Science Foundation of China ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds ; Generalitat Valenciana ; China Postdoctoral Science Foundation ; Postdoctoral Research Sponsorship in Henan Province ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU |
| 源URL | [http://119.78.100.186/handle/113462/42557]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Hua-Xing; Geng, Li-Sheng; Li, De-Min; Oset, Eulogio |
| 作者单位 | 1.Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China 2.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China 3.Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 6.Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,Dept Fis Teor, Apartado 22085, Valencia 46071, Spain 7.Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,IFIC, Apartado 22085, Valencia 46071, Spain |
| 推荐引用方式 GB/T 7714 | Wang, En,Chen, Hua-Xing,Geng, Li-Sheng,et al. Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay[J]. PHYSICAL REVIEW D,2016,93:10. |
| APA | Wang, En,Chen, Hua-Xing,Geng, Li-Sheng,Li, De-Min,&Oset, Eulogio.(2016).Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay.PHYSICAL REVIEW D,93,10. |
| MLA | Wang, En,et al."Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay".PHYSICAL REVIEW D 93(2016):10. |
入库方式： OAI收割
来源：近代物理研究所
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