Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays
文献类型：期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2005 |
| 卷号 | 71期号:9 |
| 关键词 | B-MESON DECAYS AMPLITUDE ANALYSIS PENGUIN VIOLATION PHYSICS SYSTEM |
| 通讯作者 | Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | We measure the time-dependent CP asymmetry parameters in B-0 -> K+ K- K-0 based on a data sample of approximately 227 x 10(6) B-meson pairs recorded at the Upsilon(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. We reconstruct two-body B-0 decays to phi(1020)K-S(0) and phi(1020)K-L(0), and the three-body decay K+ K- K-S(0) with phi(1020)K-S(0) excluded. For the B-0 -> phi K-0 decays, we measure sin2 beta(eff)(phi K-0) = +0.50 +/- 0.25(stat)(-0.04)(+0.07)(syst). The B-0 -> K+ K- K-S(0) decays are dominated by K+ K- S wave, as determined from an angular analysis; we measure sin2 beta(eff)((K+K-KS0)) = +0.55 +/- 0.22(stat) +/- 0.04(syst) +/- 0.11(CP), where the last error is due to the uncertainty in the fraction of CP-even contributions to the decay amplitude. We find no evidence for direct CP violation. |
| 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:000229440300002 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212554]  |
| 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. Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays[J]. PHYSICAL REVIEW D,2005,71(9). |
| APA | BaBar Collaboration.(2005).Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays.PHYSICAL REVIEW D,71(9). |
| MLA | BaBar Collaboration."Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays".PHYSICAL REVIEW D 71.9(2005). |
入库方式： OAI收割
来源：高能物理研究所
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