Measurement of branching fractions and CP violation parameters in B -> omega K decays with first evidence of CP violation in B-0 -> omega K-s(0)
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:1 |
| 关键词 | BELLE DETECTOR |
| 通讯作者 | Chobanova, V (reprint author), Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. |
| 英文摘要 | We present a measurement of the branching fractions and charge- parity-( CP-) violating parameters in B..K decays. The results are obtained from the final data sample containing 772 x 10(6) BB _ pairs collected at the.d4S_ resonance with the Belle detector at the KEKB asymmetric- energy e_e- collider. We obtain the branching fractions BdB0 0 _d4.5 0.4dstat_ 0.3dsyst_x10- 6; BdB_..K__ d6.80.4dstat_ 0.4dsyst__x10- 6 which are in agreement with their respective current world averages. For the CP- violating parameters, we obtain A.K0 S - 0.36 +/- 0.19dstat_ 0.05dsyst_; S.K0 S _0.91 0.32dstat_ 0.05dsyst_; A.K_ - 0.03 +/- 0.04dstat_ 0.01dsyst_; where A and S represent the direct and mixing- induced CP asymmetry, respectively. We find no evidence of CP violation in the decay channel B_..K_; however, we obtain the first evidence of CP violation in the B0..K0 S decay channel at the level of 3.1 standard deviations. |
| 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:000338740800002 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213739]  |
| 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. Measurement of branching fractions and CP violation parameters in B -> omega K decays with first evidence of CP violation in B-0 -> omega K-s(0)[J]. PHYSICAL REVIEW D,2014,90(1). |
| APA | Belle Collaboration.(2014).Measurement of branching fractions and CP violation parameters in B -> omega K decays with first evidence of CP violation in B-0 -> omega K-s(0).PHYSICAL REVIEW D,90(1). |
| MLA | Belle Collaboration."Measurement of branching fractions and CP violation parameters in B -> omega K decays with first evidence of CP violation in B-0 -> omega K-s(0)".PHYSICAL REVIEW D 90.1(2014). |
入库方式： OAI收割
来源：高能物理研究所
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