X (4260) revisited: A coupled channel perspective
文献类型：期刊论文
| 作者 | Lu, Y; Anwar, MN; Zou, BS
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2017 |
| 卷号 | 96期号:11页码:114022 |
| 关键词 | HEAVY TETRAQUARKS HIDDEN-CHARM QUARK-MODEL Y(4260) |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.96.114022 |
| 英文摘要 | We calculate the probabilities of various charmed meson molecules for X (4260) under the framework of the P-3(0) model. The results indicate that, even though heavy quark spin symmetry forbids S wave coupling of D-1(D) over bar to the S-3(1) charmonia [psi(nS)], the D wave coupling is allowed and not negligible. Under this symmetry, the D-1(D) over bar can couple to D-3(1) charmonia [psi(nD)] via both S and D waves, and the overall coupling is around three times larger than that of psi(nS). The X (4260) cannot be a pure molecule but a mixture of a charmonium and various charmed meson components. Since the D-1(D) over bar couples strongly to psi(nD), our results suggest that, in the D-1(D) over bar molecular picture, the charmonium core of X (4260) is psi(nD) instead of psi(nS). As a result, the experimental fact that the R ratio has a dip around 4.26 GeV can be understood in the D-1(D) over bar molecular picture of the X (4260). |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22994]  |
| 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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Y,Anwar, MN,Zou, BS. X (4260) revisited: A coupled channel perspective[J]. PHYSICAL REVIEW D,2017,96(11):114022. |
| APA | Lu, Y,Anwar, MN,&Zou, BS.(2017).X (4260) revisited: A coupled channel perspective.PHYSICAL REVIEW D,96(11),114022. |
| MLA | Lu, Y,et al."X (4260) revisited: A coupled channel perspective".PHYSICAL REVIEW D 96.11(2017):114022. |
入库方式： OAI收割
来源：理论物理研究所
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