Measurement of the CP violation parameters in B-0 -> pi(+) pi(-) decays
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2013 |
| 卷号 | 88期号:9 |
| 关键词 | BELLE DETECTOR |
| 通讯作者 | Dalseno, J (reprint author), Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. |
| 英文摘要 | We present a measurement of the charge-parity (CP) violating parameters in B-0 -> pi(+) pi(-) decays. The results are obtained from the final data sample containing 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 the CP violation parameters A(cp)(B-0 -> pi(+) pi(-)) = +0.33 +/- 0.06(stat) +/- 0.03(syst), S-cp(B-0 -> pi(+) pi(-)) = -0.64 +/- 0.08(stat) +/- 0.03(syst), where A(CP) and S-CP represent the direct and mixing-induced CP asymmetries in B-0 -> pi(+) pi(-) decays, respectively. Using an isospin analysis including results from other Belle measurements, we find 23.8 degrees < phi(2) < 66.8 degrees is disfavored at the 1 sigma level, where phi(2) is one of the three interior angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle related to B-u,B-d decays. |
| 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:000327209800001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213625]  |
| 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 the CP violation parameters in B-0 -> pi(+) pi(-) decays[J]. PHYSICAL REVIEW D,2013,88(9). |
| APA | Belle Collaboration.(2013).Measurement of the CP violation parameters in B-0 -> pi(+) pi(-) decays.PHYSICAL REVIEW D,88(9). |
| MLA | Belle Collaboration."Measurement of the CP violation parameters in B-0 -> pi(+) pi(-) decays".PHYSICAL REVIEW D 88.9(2013). |
入库方式： OAI收割
来源：高能物理研究所
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