A study of charged kappa in J/psi -> (KKS)-K-+/-pi(-/+)pi(0)
文献类型：期刊论文
| 作者 | BES Callaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2010 |
| 卷号 | 693期号:2页码:88-94 |
| 关键词 | K-PI-SCATTERING S-WAVE SIGMA MESON DECAY COLLISIONS RESONANCE AMPLITUDE PARTICLE |
| 通讯作者 | Wu, N (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | Based on 58 x 10(6) J/psi events collected by BESII, the decay J/psi -> (KKS)-K-+/-pi(-/+)pi(0) is studied. In the invariant mass spectrum recoiling against the charged K*(892)(+/-), the charged kappa particle is found as a low mass enhancement. If a Breit-Wigner function of constant width is used to parameterize the kappa, its pole locates at (849 +/- 77(-14)(+18)) - i(256 +/- 40(-22)(+46)) MeV/c(2). Also in this channel, the decay J/psi -> K*(892)K+*(892)- is observed for the first time. Its branching ratio is (1.00 +/- 0.19(-0.32)(+0.11)) x 10(-3). (C) 2010 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:000283020100004 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212985]  |
| 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. A study of charged kappa in J/psi -> (KKS)-K-+/-pi(-/+)pi(0)[J]. PHYSICS LETTERS B,2010,693(2):88-94. |
| APA | BES Callaboration.(2010).A study of charged kappa in J/psi -> (KKS)-K-+/-pi(-/+)pi(0).PHYSICS LETTERS B,693(2),88-94. |
| MLA | BES Callaboration."A study of charged kappa in J/psi -> (KKS)-K-+/-pi(-/+)pi(0)".PHYSICS LETTERS B 693.2(2010):88-94. |
入库方式： OAI收割
来源：高能物理研究所
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