Calculation of mass of Y (4140) by introducing mixed molecule state in quark model
文献类型：期刊论文
| 作者 | Lu, XF; Chen, XZ; Shi, RB; Guo, XR; Chen, XZ (reprint author), Shandong Univ Sci & Technol, Dept Fdn Courses, Tai An 271019, Shandong, Peoples R China. |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2016 |
| 卷号 | 909页码:243-259 |
| DOI | http://dx.doi.org/10.1016/j.nuclphysb.2016.05.009 |
| 英文摘要 | Using the general form of the Bethe-Salpeter wave functions for the bound states consisting of two vector fields given in our previous work, we investigate the molecular state composed of D-s*(+) D-s*(-). However, for the SU(3) symmetry the component D-s*(+) D-s*(-) is coupled with the other components D*(0)(D) over bar*(0) and D*(+) D*(-). Then we interpret the internal structure of the observed Y(4140) state as a mixed state of pure molecule states D*(0)(D) over bar*(0), D*(+) D*(-) and D-s*(+) D-s*(-) with quantum numbers J(P) = 0(+). In this paper, the operator product expansion is used to introduce the nonperturbative contribution from the vacuum condensates into the interaction between two heavy mesons. The calculated mass of Y (4140) is consistent with the experimental value, and we conclude that it is a more reasonable scenario to explain the structure of Y (4140) as a mixture of pure molecule states. (C) 2016 The Authors. Published by Elsevier B.V. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21576]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Chen, XZ (reprint author), Shandong Univ Sci & Technol, Dept Fdn Courses, Tai An 271019, Shandong, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Lu, XF,Chen, XZ,Shi, RB,et al. Calculation of mass of Y (4140) by introducing mixed molecule state in quark model[J]. NUCLEAR PHYSICS B,2016,909:243-259. |
| APA | Lu, XF,Chen, XZ,Shi, RB,Guo, XR,&Chen, XZ .(2016).Calculation of mass of Y (4140) by introducing mixed molecule state in quark model.NUCLEAR PHYSICS B,909,243-259. |
| MLA | Lu, XF,et al."Calculation of mass of Y (4140) by introducing mixed molecule state in quark model".NUCLEAR PHYSICS B 909(2016):243-259. |
入库方式： OAI收割
来源：理论物理研究所
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