Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state
文献类型：期刊论文
| 作者 | Guo, FK ; Shen, PN; Chiang, HC; Ping, RG; Guo, FK , Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.
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| 刊名 | NUCLEAR PHYSICS A
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| 出版日期 | 2005 |
| 卷号 | 761期号:40972页码:269-282 |
| 关键词 | Pi-pi-spectrum Hadronic Transitions Chiral Dynamics Scalar Mesons S-wave Decay Gamma(3s) Symmetry |
| ISSN号 | 0375-9474 |
| 英文摘要 | pi(+)pi(-) transitions of heavy quarkonia, especially the Y(3S) -> Y(1S) pi(+)pi(-) decay process, are revisited. In the framework of the Chiral Unitary Theory (ChUT), the S wave pi pi final state interaction (FSI) is included. It is found that when an additional intermediate state with J(P) = 1(+) and I = 1 is introduced, not only 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, but also a consistent description for other bottomonia pi(+)pi(-) transitions can be obtained. As a consequence, the mass and the width of the intermediate state are predicted. From the quark content analysis, this state should be a bbqq state. (c) 2005 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13720]  |
| 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, POB 918 4, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Guo, FK,Shen, PN,Chiang, HC,et al. Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state[J]. NUCLEAR PHYSICS A,2005,761(40972):269-282. |
| APA | Guo, FK,Shen, PN,Chiang, HC,Ping, RG,&Guo, FK , Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China..(2005).Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state.NUCLEAR PHYSICS A,761(40972),269-282. |
| MLA | Guo, FK,et al."Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state".NUCLEAR PHYSICS A 761.40972(2005):269-282. |
入库方式： OAI收割
来源：理论物理研究所
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