Knowledge Management System of Institute of Theoretical Physics, CAS
| Dai, WS; Li, XQ; Zhao, G; Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China. | |
| Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem | |
| Source Publication | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| Keyword | Heavy Mesons Lifetime |
| Abstract | Taking the nonspectator contributions from the "tree" level four-quark operators and the penguin-induced operators into account we recalculate the charm number n(c) in B decays. We find that for B- and Lambda(b), penguin contribution can be neglected, while for (B) over bar(d)(0), it is dominant if the nonfactorization factor (t(alpha)t(alpha)) is not sizably large. Some new physics may be needed to meet the present data. |
| 2000 | |
| ISSN | 0253-6102 |
| Volume | 33Issue:3Pages:431-436 |
| Subject Area | Physics |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/12981 |
| Collection | 理论物理所科研产出_SCI论文 |
| Corresponding Author | Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China. |
| Recommended Citation GB/T 7714 | Dai, WS,Li, XQ,Zhao, G,et al. Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,33(3):431-436. |
| APA | Dai, WS,Li, XQ,Zhao, G,&Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2000).Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem.COMMUNICATIONS IN THEORETICAL PHYSICS,33(3),431-436. |
| MLA | Dai, WS,et al."Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem".COMMUNICATIONS IN THEORETICAL PHYSICS 33.3(2000):431-436. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Contribution of peng（443KB） | 开放获取 | License | Application Full Text | |||
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