Lifetime of the B-c meson and some relevant problems
文献类型：期刊论文
| 作者 | Feng, TF; Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.; Li, XQ; Chang, CH; Chen, SL |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2001 |
| 卷号 | 64期号:1页码:- |
| 关键词 | Semileptonic Branching Ratio Inclusive Weak Decays Qcd Sum-rules Phenomenological Analysis p(p)Over-bar Collisions Root-s=1.8 Tev Beauty Spectroscopy Model Order |
| ISSN号 | 0556-2821 |
| 英文摘要 | The lifetime of the B-c meson is estimated by means of consistent considerations of all of the heavy mesons (B-0,B+/-,B-s,D-0,D',D-s) and the double heavy meson B-c itself as well. The framework, where the nonspectator effects for inclusive decays in terms of the optical theorem are taken into account properly, is adopted, and the parameters appearing in the estimate are treated phenomenologically by global fitting all the existing data for all the heavy mesons. In this estimation, special attention is paid to the masses of the heavy flavors and the bound-state effects as well. The present approach to the problem is meaningful because the numerical results show that the lifetime of the meson B-c can reach to the center value of the experimental observation. Because of the interference between the terms of the QCD correction from penguin diagrams and the main ones c(1)O(1), c(2)O(2), the total width of the meson B-c is enhanced by a factor about 3-4% that is different from the other heavy mesons and can be tested experimentally in the future. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000169619300026 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12713]  |
| 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 | Feng, TF,Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.,Li, XQ,et al. Lifetime of the B-c meson and some relevant problems[J]. PHYSICAL REVIEW D,2001,64(1):-. |
| APA | Feng, TF,Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.,Li, XQ,Chang, CH,&Chen, SL.(2001).Lifetime of the B-c meson and some relevant problems.PHYSICAL REVIEW D,64(1),-. |
| MLA | Feng, TF,et al."Lifetime of the B-c meson and some relevant problems".PHYSICAL REVIEW D 64.1(2001):-. |
入库方式： OAI收割
来源：理论物理研究所
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。