Lineshape of psi (3770) and low-lying vector charmonium resonance parameters in e(+)e(-) -> D(D)over-bar
文献类型：期刊论文
| 作者 | Zhang YJ(张远江); Zhao Q(赵强) ; Zhang, YJ; Zhao, Q
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2010 |
| 卷号 | 81期号:3页码:34011 |
| 通讯作者 | [Zhang, Yuan-Jiang ; Zhao, Qiang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Zhao, Qiang] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China |
| 英文摘要 | We investigate the D (D) over bar production in e(+)e(-) annihilations near threshold in an effective Lagrangian approach. This shows that the lineshape of the cross section near threshold is sensitive to the contributions from psi', though it is below the D (D) over bar threshold. The recent experimental data from the BES and Belle collaborations allow us to determine the psi'D (D) over bar coupling constant, which appears to be consistent with other theoretical studies. As a consequence, the psi'-psi(3770) mixing parameter can be extracted around the psi(3770) mass region. Resonance parameters for psi(3770), X(3900), psi(4040), and psi(4160) are also investigated. The X(3900) appears as an enhancement at around 3.9 GeV in the Belle data. In addition to treating it as a resonance, we also study the mechanism through which the enhancement is produced by the D (D) over bar + c.c. open channel effects. Our result shows that such a possibility cannot be eliminated. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275069000032 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240547]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang YJ,Zhao Q,Zhang, YJ,et al. Lineshape of psi (3770) and low-lying vector charmonium resonance parameters in e(+)e(-) -> D(D)over-bar[J]. PHYSICAL REVIEW D,2010,81(3):34011. |
| APA | 张远江,赵强,Zhang, YJ,&Zhao, Q.(2010).Lineshape of psi (3770) and low-lying vector charmonium resonance parameters in e(+)e(-) -> D(D)over-bar.PHYSICAL REVIEW D,81(3),34011. |
| MLA | 张远江,et al."Lineshape of psi (3770) and low-lying vector charmonium resonance parameters in e(+)e(-) -> D(D)over-bar".PHYSICAL REVIEW D 81.3(2010):34011. |
入库方式： OAI收割
来源：高能物理研究所
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