Resonant parameters of the Y(4220)
文献类型：期刊论文
| 作者 | Gao, XY ; Shen, CP; Yuan ZZ(苑长征); Yuan, CZ
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2017 |
| 卷号 | 95期号:9页码:92007 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.95.092007 |
| 文献子类 | Article |
| 英文摘要 | The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e(+)e(-) -> pi(+)pi(-) h(c), omega chi(c0) , pi(+)pi(-)J/psi and (DD)-D-0*(-) pi(+)+ c.c measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We determine a mass M = (4219.6 +/- 3.3 +/- 5.1) MeV/c(2) and a total width Gamma = (56.0 +/- 3.6 +/- 6.9) MeV for the Y(4220), where the first uncertainties are statistical and the second ones systematic. We determine the lower limit of its leptonic decay width of around 30 eV, which can be compared with the theoretical expectations of different models. We also estimate its partial decay width to pi pi J/psi in different scenarios. This information is essential for the understanding of the nature of this state. |
| 电子版国际标准刊号 | 2470-0029 |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000402471800001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284518]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 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 | Gao, XY,Shen, CP,Yuan ZZ,et al. Resonant parameters of the Y(4220)[J]. PHYSICAL REVIEW D,2017,95(9):92007. |
| APA | Gao, XY,Shen, CP,苑长征,&Yuan, CZ.(2017).Resonant parameters of the Y(4220).PHYSICAL REVIEW D,95(9),92007. |
| MLA | Gao, XY,et al."Resonant parameters of the Y(4220)".PHYSICAL REVIEW D 95.9(2017):92007. |
入库方式： OAI收割
来源：高能物理研究所
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