Coulomb gauge model for hidden charm tetraquarks
文献类型：期刊论文
| 作者 | Xie W(谢伟) ; Xie, W; 王平(理);Mo, LQ; Wang, P; Cotanch, SR
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2013 |
| 卷号 | 725期号:1-3页码:148-152 |
| 关键词 | Exotic mesons Hidden charm Tetraquarks QCD Coulomb gauge Effective Hamiltonian |
| 英文摘要 | The spectrum of tetraquark states with hidden charm is studied within an effective Coulomb gauge Hamiltonian approach. Of the four independent color schemes, two are investigated, the (q (c) over bar)(1) (c (q) over bar)(1) singlet-singlet (molecule) and the (qc)(3)((q) over bar(c) over bar)(3) triplet-triplet (diquark), for selected J(PC) states using a variational method. The predicted masses of triplet-triplet tetraquarks are roughly a GeV heavier than the singlet-singlet states. There is also an interesting flavor dependence with (q (q) over bar)(1) (c (c) over bar (1)) states about half a GeV lighter than (q ((q) over bar)(1). The lightest 1(++) and 1(--) predictions are in agreement with the observed X(3872) and Y(4008) masses suggesting they are molecules with omega J/psi and eta h(c), rather than D*(D) over bar* and DD, type structure, respectively. Similarly, the lightest isovector 1(++) molecule, having a rho J /psi flavor composition, has mass near the recently observed charged Z(c) (3900) value. These flavor configurations are consistent with observed X, Y and Z(c) decays to pi pi J/psi. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000322606800019 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223874]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Xie W,Xie, W,Wang P,et al. Coulomb gauge model for hidden charm tetraquarks[J]. PHYSICS LETTERS B,2013,725(1-3):148-152. |
| APA | 谢伟,Xie, W,王平,Wang, P,&Cotanch, SR.(2013).Coulomb gauge model for hidden charm tetraquarks.PHYSICS LETTERS B,725(1-3),148-152. |
| MLA | 谢伟,et al."Coulomb gauge model for hidden charm tetraquarks".PHYSICS LETTERS B 725.1-3(2013):148-152. |
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来源：高能物理研究所
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