First measurements of eta(c) decaying into K (+) K (-)2 (pi(+)pi(-)) and 3(pi(+)pi(-))
文献类型：期刊论文
| 作者 | BES Callaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2006 |
| 卷号 | 633期号:1页码:19-24 |
| 关键词 | HADRONIC DECAYS ETA-C(2980) MASS |
| 通讯作者 | Fang, SS (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | The decays of eta(c) to K(+)K(-)2(pi(+)pi(-)) and 3(pi(+)pi(-)) are observed for the first time using a sample of 5.8 x 10(7) J/psi events collected by the BESII detector. The product branching fractions are determined to be B(J/psi -> gamma eta(c)). B(eta(c) -> K(+)K(-)pi(+)pi(-)pi(+)pi(-)) = (1.21 +/- 0.32 +/- 0.24) x 10(-4), B(J/psi -> gamma eta(c)). B(eta(c) -> K*K-0*(0)pi(+)pi(-)) = (1.91 +/- 0.64 +/- 0.48) x 10(-4), and B(J/psi -> gamma eta(c)). B(eta(c) -> pi(+)pi(-)pi(+)pi(-)pi(+)pi(-)) = (2.59 +/- 0.32 +/- 0.47) x 10(-4). The upper limit for eta(c) -> phi pi(+)pi(-)pi(+)pi(-) is also obtained as B(J/psi -> gamma eta(c)). B(eta(c) -> phi pi(+)pi(-)pi(+)pi(-)) < 6.03 x 10(-5) at the 90% confidence level. (c) 2005 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235098400004 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212645]  |
| 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 | BES Callaboration. First measurements of eta(c) decaying into K (+) K (-)2 (pi(+)pi(-)) and 3(pi(+)pi(-))[J]. PHYSICS LETTERS B,2006,633(1):19-24. |
| APA | BES Callaboration.(2006).First measurements of eta(c) decaying into K (+) K (-)2 (pi(+)pi(-)) and 3(pi(+)pi(-)).PHYSICS LETTERS B,633(1),19-24. |
| MLA | BES Callaboration."First measurements of eta(c) decaying into K (+) K (-)2 (pi(+)pi(-)) and 3(pi(+)pi(-))".PHYSICS LETTERS B 633.1(2006):19-24. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。