Spectroscopy and decays of the fully-heavy tetraquarks
文献类型：期刊论文
| 作者 | Zou, BS ; Ferretti, J; Guo, FK; Santopinto, E1; Anwar, MN
|
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2018 |
| 卷号 | 78期号:8页码:647 |
| ISSN号 | 1434-6044 |
| 关键词 | BOUND-STATES QUANTUM CHROMODYNAMICS MASS INEQUALITIES MULTIQUARK HADRONS HIDDEN-CHARM QUARK-MODEL SYSTEMS QCD MESONS ANNIHILATION |
| DOI | 10.1140/epjc/s10052-018-6073-9 |
| 英文摘要 | We discuss the possible existence of the fullyheavy tetraquarks. We calculate the ground-state energy of the bb (b) over bar(b) over bar bound state, where b stands for the bottom quark, in a nonrelativistic effective field theory framework with onegluon-exchange (OGE) color Coulomb interaction, and in a relativized diquark model characterized by OGE plus a confining potential. Our analysis advocates the existence of uni-flavor heavy four-quark bound states. The ground state bbbb tetraquark mass is predicted to be (18.72 +/- 0.02) GeV. Mass inequality relations among the lowest QQ (Q) over bar(Q) over bar states, where Q is an element of (c, b), and the corresponding heavy quarkonia are presented, which give the upper limit on the mass of ground state QQ (Q) over bar(Q) over bar. The possible decays of the lowest bb (b) over barb are highlighted, which might provide useful references in the search for them in ongoing LHC experiments, and its width is estimated to be a few tens of MeV. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22837]  |
| 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, Sch Phys Sci, Beijing 100049, Peoples R China 2.INFN, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy 3.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 4.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, BS,Ferretti, J,Guo, FK,et al. Spectroscopy and decays of the fully-heavy tetraquarks[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(8):647. |
| APA | Zou, BS,Ferretti, J,Guo, FK,Santopinto, E,&Anwar, MN.(2018).Spectroscopy and decays of the fully-heavy tetraquarks.EUROPEAN PHYSICAL JOURNAL C,78(8),647. |
| MLA | Zou, BS,et al."Spectroscopy and decays of the fully-heavy tetraquarks".EUROPEAN PHYSICAL JOURNAL C 78.8(2018):647. |
入库方式： OAI收割
来源：理论物理研究所
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