Hunting for exotic doubly hidden-charm/bottom tetraquark states
文献类型：期刊论文
| 作者 | Chen, Wei1; Chen, Hua-Xing2,3; Liu, Xiang4,5,6; Steele, T. G.1; Zhu, Shi-Lin7,8,9,10 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2017-10-10 |
| 卷号 | 773页码:247-251 |
| 关键词 | Tetraquark states QCD sum rules Moment method |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.08.034 |
| 英文摘要 | We develop a moment QCD sum rule method augmented by fundamental inequalities to study the existence of exotic doubly hidden-charm/bottom tetraquark states made of four heavy quarks. Using the compact diquark-antidiquark configuration, we calculate the mass spectra of these tetraquark states. There are 18 hidden-charm cc (c) over bar(c) over bar ctetraquark currents with J(PC) = 0(++), 0(-+), 0(--), 1(++), 1(+-), 1(-+), 1(--), and 2(++). We use them to perform QCD sum rule analyses, and the obtained masses are all higher than the spontaneous dissociation thresholds of two charmonium mesons, which are thus their dominant decay modes. The masses of the corresponding hidden-bottom bb (b) over bar(b) over bar tetraquarks are all below or very close to the thresholds of the (sic)(1S)(sic)(1S) and eta(b)(1S)eta(b)(1S), except one current of J(PC) = 0(++). Hence, we suggest to search for the doubly hidden-charm states in the J/psi J/psi and eta(c)(1S)eta(c)(1S) channels. (C) 2017 The Authors. Published by Elsevier B.V. |
| WOS关键词 | QCD SUM-RULES ; RESONANCE PHYSICS ; GLUON CONDENSATE ; QUARK MASS ; SYSTEMS ; CHARMONIUM ; POSITRONIUM ; ALPHA(S) |
| 资助项目 | Ministry of Education of China (SRFDP)[20120211110002] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000413294200038 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/56796]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Hua-Xing |
| 作者单位 | 1.Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada 2.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China 3.Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China 4.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 5.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Gansu, Peoples R China 6.Inst Modern Phys CAS, Lanzhou 730000, Gansu, Peoples R China 7.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 8.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 9.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 10.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Wei,Chen, Hua-Xing,Liu, Xiang,et al. Hunting for exotic doubly hidden-charm/bottom tetraquark states[J]. PHYSICS LETTERS B,2017,773:247-251. |
| APA | Chen, Wei,Chen, Hua-Xing,Liu, Xiang,Steele, T. G.,&Zhu, Shi-Lin.(2017).Hunting for exotic doubly hidden-charm/bottom tetraquark states.PHYSICS LETTERS B,773,247-251. |
| MLA | Chen, Wei,et al."Hunting for exotic doubly hidden-charm/bottom tetraquark states".PHYSICS LETTERS B 773(2017):247-251. |
入库方式： OAI收割
来源：近代物理研究所
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