Observation of B+-> p Lambda pi(+)pi(-) at Belle
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2009 |
| 卷号 | 80期号:11 |
| 关键词 | BARYONIC B-DECAYS |
| 通讯作者 | Chen, P (reprint author), Natl Taiwan Univ, Dept Phys, Taipei, Taiwan. |
| 英文摘要 | We study charmless B+ meson decays to the p Lambda pi(+)pi(-) final state using a 605 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. There are significant signals found with the p Lambda mass peaking near threshold. The observed branching fraction for nonresonant B+-> p Lambda pi(+)pi(-) is (5.92(-0.84)(+0.88)(stat)+/- 0.69(syst))x10(-6) with a significance of 9.1 standard deviations. We also observe the intermediate three-body decay B+-> p Lambda rho(0) with a branching fraction of (4.78(-0.64)(+0.67)(stat)+/- 0.60(syst))x10(-6) and a significance of 9.5 standard deviations, and find a hint of a B+-> p Lambda f(2)(1270) signal. No other intermediate three-body decay is found in this study. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273233000003 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212919]  |
| 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+-> p Lambda pi(+)pi(-) at Belle[J]. PHYSICAL REVIEW D,2009,80(11). |
| APA | Belle Collaboration.(2009).Observation of B+-> p Lambda pi(+)pi(-) at Belle.PHYSICAL REVIEW D,80(11). |
| MLA | Belle Collaboration."Observation of B+-> p Lambda pi(+)pi(-) at Belle".PHYSICAL REVIEW D 80.11(2009). |
入库方式： OAI收割
来源：高能物理研究所
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