Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization
文献类型:期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2004 |
| 卷号 | 69期号:3 |
| 关键词 | CP-ASYMMETRIES CHARMLESS SEARCH |
| 通讯作者 | Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | We have observed the rare decay B-0-->rho(+)rho(-) in a sample of 89 million B (b) over bar pairs recorded with the BABAR detector. The number of observed events is 88(-21)(+23)+/-9, with a significance of 5.1 standard deviations with systematic uncertainties included. The branching fraction and the longitudinal polarization are measured to be B(B-0-->rho(+)rho(-))=(25(-6-6)(+7+5))x10(-6) and Gamma(L)/Gamma=0.98(-0.08)(+0.02)+/-0.03, respectively. |
| 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:000220001600002 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212363] ![]() |
| 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 | BaBar Collaboration. Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization[J]. PHYSICAL REVIEW D,2004,69(3). |
| APA | BaBar Collaboration.(2004).Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization.PHYSICAL REVIEW D,69(3). |
| MLA | BaBar Collaboration."Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization".PHYSICAL REVIEW D 69.3(2004). |
入库方式: OAI收割
来源:高能物理研究所
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