Observation of B+->Lambda(+)(c)Lambda K--(c)+ and B-0 ->Lambda(+)(c)Lambda K--(c)0 decays
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 97期号:20 |
| 关键词 | BARYON-ANTIBARYON PAIRS EXCLUSIVE DECAYS SEARCH DETECTOR MESONS |
| 通讯作者 | Gabyshev, N (reprint author), Budker Inst Nucl Phys, Novosibirsk 630090, Russia. |
| 英文摘要 | We report the first measurements of the doubly charmed baryonic B decays B ->Lambda(+)(c)Lambda K--(c). The B+->Lambda(+)(c)Lambda K--(c)+ decay is observed with a branching fraction of (6.5(-0.9)(+1.0)+/- 1.1 +/- 3.4)x10(-4) and a statistical significance of 15.4 sigma. The B-0 ->Lambda(+)(c)Lambda K--(c)0 decay is observed with a branching fraction of (7.9(-2.3)(+2.9)+/- 1.2 +/- 4.1)x10(-4) and a statistical significance of 6.6 sigma. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Lambda(+)(c)-> pK(-)pi(+) decay branching fraction. The analysis is based on 357 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242101600014 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212745]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 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 | Belle Collaboration. Observation of B+->Lambda(+)(c)Lambda K--(c)+ and B-0 ->Lambda(+)(c)Lambda K--(c)0 decays[J]. PHYSICAL REVIEW LETTERS,2006,97(20). |
| APA | Belle Collaboration.(2006).Observation of B+->Lambda(+)(c)Lambda K--(c)+ and B-0 ->Lambda(+)(c)Lambda K--(c)0 decays.PHYSICAL REVIEW LETTERS,97(20). |
| MLA | Belle Collaboration."Observation of B+->Lambda(+)(c)Lambda K--(c)+ and B-0 ->Lambda(+)(c)Lambda K--(c)0 decays".PHYSICAL REVIEW LETTERS 97.20(2006). |
入库方式： OAI收割
来源：高能物理研究所
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