Measurements of branching fractions and time-dependent CP violating asymmetries in 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 | 85期号:9 |
| 关键词 | B-MESONS SEARCH BELLE |
| 通讯作者 | Rohrken, M (reprint author), Karlsruher Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany. |
| 英文摘要 | We report measurements of branching fractions and time-dependent CP asymmetries in B-0 -> D+D- and B-0 -> D*D-+/-(-/+) decays using a data sample that contains (772 +/- 11) x 10(6)B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We determine the branching fractions to be B(B-0 -> D+D-) = (2.12 +/- 0.16 +/- 0.18) X 10(-4) and B(B-0 -> D*D-+/-(-/+)) = (6.14 +/- 0.29 +/- 0.50) x 10(-4). We measure CP asymmetry parameters SD+D- = -1.06(-0.14)(+0.21) +/- 0.08 and CD+D- = -0.43 +/- 0.16 +/- 0.05 in B-0 -> D+D- and A(D*D) = +0.06 +/- 0.05 +/- 0.02, S-D*D = -0.78 +/- 0.15 +/- 0.05, C-D*D = -0.01 +/- 0.11 +/- 0.04, +/- Delta S-D*D = -0.13 +/- 0.15 +/- 0.04 and Delta C-D*D = +0.12 +/- 0.11 +/- 0.03 in B-0 -> D*D-+/-(-/+), where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4 sigma significance. |
| 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:000304255300001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213243]  |
| 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. Measurements of branching fractions and time-dependent CP violating asymmetries in B-0 -> D-(*D-)+/-(-/+) decays[J]. PHYSICAL REVIEW D,2012,85(9). |
| APA | Belle Collaboration.(2012).Measurements of branching fractions and time-dependent CP violating asymmetries in B-0 -> D-(*D-)+/-(-/+) decays.PHYSICAL REVIEW D,85(9). |
| MLA | Belle Collaboration."Measurements of branching fractions and time-dependent CP violating asymmetries in B-0 -> D-(*D-)+/-(-/+) decays".PHYSICAL REVIEW D 85.9(2012). |
入库方式： OAI收割
来源：高能物理研究所
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