Lifetime of doubly charmed baryons
文献类型：期刊论文
| 作者 | Chang, CH; Li, T; Li, XQ ; Wang, YM; Wang YM(王玉明)
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2008 |
| 卷号 | 49期号:4页码:993-1000 |
| 关键词 | doubly charmed baryons harmonic oscillator model |
| 通讯作者 | [Chang, Chao-Hsi] CCAST, World Lab, Beijing 100080, Peoples R China ; [Chang, Chao-Hsi] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China ; [Li, Tong ; Li, Xue-Qian] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; [Wang, Yu-Ming] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | n this work, we evaluate the lifetimes of the doubly charmed baryons Xi(+)(cc), Xi(++)(cc) and Omega(+)(cc). We carefully calculate the non-spectator contributions at the quark level, where the Cabibbo-suppressed diagrams are also included. The hadronic matrix elements are evaluated in the simple non-relativistic harmonic oscillator model. Our numerical results are generally consistent with that obtained by other authors who used the diquark model. However, all the theoretical predictions on the lifetimes are one order larger than the upper limit set by the recent SELEX measurement. This discrepancy would be clarified by the future experiment. If more accurate experiment still confirms the value of the SELEX collaboration, there must be some unknown mechanism to be explored. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000255100900038 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238857]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_粒子天体物理中心 高能物理研究所_计算中心 |
| 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 | Chang, CH,Li, T,Li, XQ,et al. Lifetime of doubly charmed baryons[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,49(4):993-1000. |
| APA | Chang, CH,Li, T,Li, XQ,Wang, YM,&王玉明.(2008).Lifetime of doubly charmed baryons.COMMUNICATIONS IN THEORETICAL PHYSICS,49(4),993-1000. |
| MLA | Chang, CH,et al."Lifetime of doubly charmed baryons".COMMUNICATIONS IN THEORETICAL PHYSICS 49.4(2008):993-1000. |
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。