Study of the decay B-0((B)over-bar(0))->rho(+)rho(-), and constraints on the Cabibbo-Kobayashi-maskawa angle alpha
文献类型：期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2004 |
| 卷号 | 93期号:23 |
| 关键词 | HIGH-ENERGY-PHYSICS CP-ASYMMETRIES |
| 通讯作者 | Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | Using a data sample of 89x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC, we measure the B-0((B) over bar (0))-->rho(+)rho(-) branching fraction as [30+/-4(stat)+/-5(syst)]x10(-6) and a longitudinal polarization fraction of f(L)=0.99+/-0.03(stat)(-0.03)(+0.04)(syst). We measure the time-dependent-asymmetry parameters of the longitudinally polarized component of this decay as C-L=-0.17+/-0.27(stat)+/-0.14(syst) and S-L=-0.42+/-0.42(stat)+/-0.14(syst). We exclude values of alpha between 19degrees and 71degrees (90% C.L.). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225508000015 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212484]  |
| 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. Study of the decay B-0((B)over-bar(0))->rho(+)rho(-), and constraints on the Cabibbo-Kobayashi-maskawa angle alpha[J]. PHYSICAL REVIEW LETTERS,2004,93(23). |
| APA | BaBar Collaboration.(2004).Study of the decay B-0((B)over-bar(0))->rho(+)rho(-), and constraints on the Cabibbo-Kobayashi-maskawa angle alpha.PHYSICAL REVIEW LETTERS,93(23). |
| MLA | BaBar Collaboration."Study of the decay B-0((B)over-bar(0))->rho(+)rho(-), and constraints on the Cabibbo-Kobayashi-maskawa angle alpha".PHYSICAL REVIEW LETTERS 93.23(2004). |
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来源：高能物理研究所
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