Knowledge Management System of Institute of Theoretical Physics, CAS
| Wang, E; Chen, HX; Geng, LS; Li, DM; Oset, E; Li, DM (reprint author), Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Oset, E (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.; Oset, E (reprint author), Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,Dept Fis Teor, Apartado 22085, Valencia 46071, Spain.; Oset, E (reprint author), Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,IFIC, Apartado 22085, Valencia 46071, Spain. | |
| Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Abstract | 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. |
| 2016 | |
| Volume | 93Issue:9Pages:94001 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.094001 |
| Indexed By | SCI |
| Funding Organization | Chinese Academy of Science (CAS) [2013T2J] ; Chinese Academy of Science (CAS) [2013T2J] ; Chinese Academy of Science (CAS) [2013T2J] ; Chinese Academy of Science (CAS) [2013T2J] ; National Natural Science Foundation of China [11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11375024, 11522539, 11505158, 11475015] ; Spanish Ministerio de Economia y Competitividad ; Spanish Ministerio de Economia y Competitividad ; Spanish Ministerio de Economia y Competitividad ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds [FIS2011-28853-C02-01, FIS2011-28853-C02-02] ; European FEDER funds [FIS2011-28853-C02-01, FIS2011-28853-C02-02] ; European FEDER funds [FIS2011-28853-C02-01, FIS2011-28853-C02-02] ; European FEDER funds [FIS2011-28853-C02-01, FIS2011-28853-C02-02] ; Generalitat Valenciana [Prometeo II-2014/068] ; Generalitat Valenciana [Prometeo II-2014/068] ; Generalitat Valenciana [Prometeo II-2014/068] ; Generalitat Valenciana [Prometeo II-2014/068] ; China Postdoctoral Science Foundation [2015M582197] ; China Postdoctoral Science Foundation [2015M582197] ; China Postdoctoral Science Foundation [2015M582197] ; China Postdoctoral Science Foundation [2015M582197] ; Postdoctoral Research Sponsorship in Henan Province [2015023] ; Postdoctoral Research Sponsorship in Henan Province [2015023] ; Postdoctoral Research Sponsorship in Henan Province [2015023] ; 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] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU [283286] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU [283286] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU [283286] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21665 |
| Collection | SCI期刊论文 |
| Corresponding Author | Chen, HX; Li, DM (reprint author), Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Oset, E (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.; Oset, E (reprint author), Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,Dept Fis Teor, Apartado 22085, Valencia 46071, Spain.; Oset, E (reprint author), Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,IFIC, Apartado 22085, Valencia 46071, Spain. |
| Recommended Citation GB/T 7714 | Wang, E,Chen, HX,Geng, LS,et al. Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay[J]. PHYSICAL REVIEW D,2016,93(9):94001. |
| APA | Wang, E.,Chen, HX.,Geng, LS.,Li, DM.,Oset, E.,...&Oset, E .(2016).Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay.PHYSICAL REVIEW D,93(9),94001. |
| MLA | Wang, E,et al."Hidden-charm pentaquark state in Lambda(0)(b) -> J/psi p pi(-) decay".PHYSICAL REVIEW D 93.9(2016):94001. |
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