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 , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.; Ping, RG; Guo, FK ; Shen, PN; Jiang, HQ
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| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
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| 出版日期 | 2005 |
| 卷号 | 29期号:12页码:1121-1124 |
| 关键词 | Excited Heavy Quarkonia Pi-pi-spectrum S-wave Hadronic Transitions Chiral-symmetry Gamma(3s) |
| ISSN号 | 0254-3052 |
| 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 |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000233766000001 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13707]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Guo, FK , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Guo, FK , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.,Ping, RG,Guo, FK,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 | Guo, FK , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.,Ping, RG,Guo, FK,Shen, PN,&Jiang, HQ.(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 | Guo, FK , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.,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：理论物理研究所
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