Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks
文献类型：期刊论文
| 作者 | Li, Qiang; Chang, Chao-Hsi; Wang, Guo-Li; Wang, Tianhong5 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2021 |
| 卷号 | 104期号:1页码:14018 |
| 关键词 | HEAVY DIQUARK CHARMONIUM EQUATION |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.104.014018 |
| 英文摘要 | The compact tetraquark states with fully heavy quark contents QQ (Q) over bar(Q) over bar are studied as the bound states of the diquark-antidiquark within the Bethe-Salpeter framework. The (anti)diquark masses and form factors used are the same as we calculated the doubly heavy baryons in a previous work. Under the instantaneous approximation, the three-dimensional (Bethe-)Salpeter equation of the tetraquarks is derived and solved numerically to obtain the corresponding mass spectra and wave functions of the tetraquarks with J(PC) = 0(++), 1(+-), and 2(++). Our results show that the three ground states of cc (c) over bar(c) over bar locate in the mass range of 6.4-6.5 GeV, and the bb (b) over bar(b) over bar states in mass range of 19.2-19.3 GeV. The obtained relativistic wave functions naturally include the mixing effects from the possible D (or G) partial waves, and then can be further used to do precise calculations of the tetraquark decays. Based on the obtained results, the LHCb's observation X(6900) is less likely to be the ground states of compact cc (c) over bar(c) over bar tetraquarks but might be the first or second excited states. In addition, a widely used propagatorlike form factor is also investigated and discussed. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27392]  |
| 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.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.CCAST World Lab, POB 8730, Beijing 100190, Peoples R China 5.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China 6.Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qiang,Chang, Chao-Hsi,Wang, Guo-Li,et al. Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks[J]. PHYSICAL REVIEW D,2021,104(1):14018. |
| APA | Li, Qiang,Chang, Chao-Hsi,Wang, Guo-Li,&Wang, Tianhong.(2021).Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks.PHYSICAL REVIEW D,104(1),14018. |
| MLA | Li, Qiang,et al."Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks".PHYSICAL REVIEW D 104.1(2021):14018. |
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来源：理论物理研究所
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