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; Shen, PN; Jiang, HQ; Ping, RG |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2005-12-01 |
| 卷号 | 29页码:1121-1124 |
| 关键词 | chiral unitary theory Upsilon decay pi pi S wave final state interaction tetraquark state |
| 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. |
| WOS关键词 | EXCITED HEAVY QUARKONIA ; PI-PI-SPECTRUM ; S-WAVE ; HADRONIC TRANSITIONS ; CHIRAL-SYMMETRY ; GAMMA(3S) |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000233766000001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.186/handle/113462/25381]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Guo, FK |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.CCAST, World Lab, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 6.SW China Normal Univ, Chongqing 400715, Peoples R China |
| 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,2005,29:1121-1124. |
| APA | Guo, FK,Shen, PN,Jiang, HQ,&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,29,1121-1124. |
| MLA | Guo, FK,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(2005):1121-1124. |
入库方式： OAI收割
来源：近代物理研究所
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