First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decays
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:7 |
| 关键词 | BELLE ASYMMETRIES DETECTOR |
| 通讯作者 | Kronenbitter, B (reprint author), Karlsruher Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany. |
| 英文摘要 | We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B-0 -> D*(+) D*(-) decays using a data sample of 772 x 10(6)B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain a branching fraction of B = (7.82 +/- 0.38 +/- 0.63) x 10(-4), a CP-odd fraction of R-perpendicular to = 0.138 +/- 0.024 +/- 0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R-0 = 0.624 +/- 0.029 +/- 0.011. The measured values of the parameters of the CP violation are SD*+ D*- = 0.79 +/- 0.13 +/- 0.03 and A(D*+ D*-) 0.15 +/- 0.08 +/- 0.04. |
| 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:000309999100001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213355]  |
| 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. First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decays[J]. PHYSICAL REVIEW D,2012,86(7). |
| APA | Belle Collaboration.(2012).First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decays.PHYSICAL REVIEW D,86(7). |
| MLA | Belle Collaboration."First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decays".PHYSICAL REVIEW D 86.7(2012). |
入库方式： OAI收割
来源：高能物理研究所
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