Lifetime of doubly charmed baryons
文献类型：期刊论文
| 作者 | Chang, Chao-Hsi; Li, Tong; Li, Xue-Qian; Wang, Yu-Ming; Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2008 |
| 卷号 | 49期号:4页码:993-1000 |
| 关键词 | Oscillator Quark-model To-leading Order Weak Decays Inclusive Decays Mass Dependence Qcd Corrections Beauty Hadrons B-mesons Transitions Difference |
| ISSN号 | 0253-6102 |
| 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 |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000255100900038 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5550]  |
| 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 | Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Chao-Hsi,Li, Tong,Li, Xue-Qian,et al. Lifetime of doubly charmed baryons[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,49(4):993-1000. |
| APA | Chang, Chao-Hsi,Li, Tong,Li, Xue-Qian,Wang, Yu-Ming,&Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.(2008).Lifetime of doubly charmed baryons.COMMUNICATIONS IN THEORETICAL PHYSICS,49(4),993-1000. |
| MLA | Chang, Chao-Hsi,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：理论物理研究所
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