The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb P-c(4380) and P-c(4450) states
文献类型：期刊论文
| 作者 | Ferretti, J; Santopinto, E; Anwar, MN; Bedolla, MA |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2019 |
| 卷号 | 789页码:562-567 |
| 关键词 | SHORT-DISTANCE ANALYSIS HADRONIC TRANSITIONS HEAVY QUARKS J/PSI SYSTEMS MESON |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.09.047 |
| 英文摘要 | We study baryo-charmonium [eta(c)- and J/psi-N*, eta(c)(2S)-, psi(2S)- and chi(c)(1P)-N] and baryo-bottomonium [eta(b)(2S)-, Upsilon(28)- and chi(b)(1P)-N] bound states, where N is the nucleon and N* a nucleon resonance. In the baryo-quarkonium model, the five qqqQ (Q) over bar quarks are arranged in terms of a heavy quarkonium core, Q (Q) over bar, embedded in light baryonic matter, qqq, with q = u or d. The interaction between the Q (Q) over bar core and the light baryon can be written in terms of the QCD multipole expansion. The spectrum of baryo-charmonium states is calculated and the results compared with the existing experimental data. In particular, we can interpret the recently discovered P-c(4380) and P-c(4450) pentaquarks as psi*(2S)-N and chi(c2)(1P)-N bound states, respectively. We observe that in the baryo-bottomonium sector the binding energies are, on average, slightly larger than those of baryo-charmonia. Because of this, the hidden bottom pentaquarks are more likely to form than their hidden-charm counterparts. We thus suggest the experimentalists to look for five-quark states in the hidden-bottom sector in the 10.4-10.9 GeV energy region. (C) 2018 The Authors. Published by Elsevier B.V. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23490]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.[Ferretti, J. 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.[Ferretti, J.] Yale Univ, Ctr Theoret Phys, Sloane Phys Lab, New Haven, CT 06520 USA 5.[Santopinto, E. 6.Bedolla, M. A.] INFN, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy 7.Forschungszentrum, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany 8.Forschungszentrum, Julich Ctr Hadron Phys, D-52425 Julich, Germany 9.[Bedolla, M. A.] Univ Michoacana, Inst Fis & Matemat, Edificio C-3,Ciudad Univ, Morelia 58040, Michoacan, Mexico |
| 推荐引用方式 GB/T 7714 | Ferretti, J,Santopinto, E,Anwar, MN,et al. The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb P-c(4380) and P-c(4450) states[J]. PHYSICS LETTERS B,2019,789:562-567. |
| APA | Ferretti, J,Santopinto, E,Anwar, MN,&Bedolla, MA.(2019).The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb P-c(4380) and P-c(4450) states.PHYSICS LETTERS B,789,562-567. |
| MLA | Ferretti, J,et al."The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb P-c(4380) and P-c(4450) states".PHYSICS LETTERS B 789(2019):562-567. |
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来源：理论物理研究所
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