Measurements of branching fractions for B-0 -> D-s(+) pi(-) and (B)over-bar(0) -> D-s(+) K-
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2010 |
| 卷号 | 82期号:5 |
| 关键词 | CP-VIOLATION B-MESONS DECAYS ANNIHILATION |
| 通讯作者 | Das, A (reprint author), Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India. |
| 英文摘要 | We present improved measurements of the branching fractions for the decays B-0 -> D-s(+) pi(-) and (B) over bar (0) -> D-s(+) K- using a data sample of 657 X 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. The results are B(B-0 -> D-s(+) pi(-)) = (1.99 +/- 0.26 +/- 0.18) X 10(-5) and B((B) over bar (0) -> D-s(+) K-) = (1.91 +/- 0.24 +/- 0.17) X 10(-5), where the uncertainties are statistical and systematic, respectively. Based on these results, we determine the ratio between amplitudes of the doubly Cabibbo suppressed decay B-0 -> D+pi(-) and the Cabibbo favored decay B-0 -> D-pi(+), R-D pi = [1.71 +/- 0.11(stat) +/- 0.09(syst) +/- 0.02(theo)]%, where the last term denotes the theory error. |
| 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:000282214400001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212981]  |
| 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 for B-0 -> D-s(+) pi(-) and (B)over-bar(0) -> D-s(+) K-[J]. PHYSICAL REVIEW D,2010,82(5). |
| APA | Belle Collaboration.(2010).Measurements of branching fractions for B-0 -> D-s(+) pi(-) and (B)over-bar(0) -> D-s(+) K-.PHYSICAL REVIEW D,82(5). |
| MLA | Belle Collaboration."Measurements of branching fractions for B-0 -> D-s(+) pi(-) and (B)over-bar(0) -> D-s(+) K-".PHYSICAL REVIEW D 82.5(2010). |
入库方式： OAI收割
来源：高能物理研究所
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