ITP OpenIR  > SCI期刊论文
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 PublicationPHYSICAL REVIEW D
Language英语
AbstractWe 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
Volume93Issue:9Pages:94001
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.094001
Indexed BySCI
Funding OrganizationChinese 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]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21665
CollectionSCI期刊论文
Corresponding AuthorChen, 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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