Decay Upsilon(3S) -> Upsilon(1S)pi(+)pi(-) and a possible b(b)over-barq(q)over-bar state
文献类型：期刊论文
| 作者 | Guo FK(郭奉坤); Shen PN(沈彭年); Jiang HQ(姜焕清); Ping RG(平荣刚) ; Guo, FK; Shen, PN; Jiang, HQ; Ping, RG
|
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2005 |
| 卷号 | 29期号:12页码:1121-1124 |
| 关键词 | chiral unitary theory Upsilon decay pi pi S wave final state interaction tetraquark state |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China ; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China ; SW China Normal Univ, Chongqing 400715, Peoples R China |
| 英文摘要 | The decay process Y(3S) -> Y(1S)pi(+)pi(-) are re-visited using a Chiral Unitary Theory (ChUT) to include the important pi pi S wave final state interaction (FSI). It is found that when an additional intermediate state with J(P) = 1(+) and I = 1 is introduced, the pi pi invariant mass spectrum and the cos theta(pi)* distribution in the Y(3S) -> Y(1S)pi(+)pi(-) process can simultaneously be well-explained, and a good description for other bottomonium pi(+)pi(-) transitions can be obtained consistently. As a result, the mass and the width of the intermediate state are predicted to be M-X = 10.08GeV and T-X = 0.655GeV, respectively. From the quark content analysis, this state should be a b (b) over barq (q) over bar state. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233766000001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239083]  |
| 专题 | 高能物理研究所_理论物理室 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 | Guo FK,Shen PN,Jiang HQ,et al. Decay Upsilon(3S) -> Upsilon(1S)pi(+)pi(-) and a possible b(b)over-barq(q)over-bar state[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2005,29(12):1121-1124. |
| APA | 郭奉坤.,沈彭年.,姜焕清.,平荣刚.,Guo, FK.,...&Ping, RG.(2005).Decay Upsilon(3S) -> Upsilon(1S)pi(+)pi(-) and a possible b(b)over-barq(q)over-bar state.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,29(12),1121-1124. |
| MLA | 郭奉坤,et al."Decay Upsilon(3S) -> Upsilon(1S)pi(+)pi(-) and a possible b(b)over-barq(q)over-bar state".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 29.12(2005):1121-1124. |
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。