| Measurement of CP asymmetries in B-0 -> K-0 pi(0) decays |
| Belle Collaboration
|
| 2010
|
发表期刊 | PHYSICAL REVIEW D
 |
卷号 | 81期号:1 |
通讯作者 | Fujikawa, M (reprint author), Nara Womens Univ, Nara 630, Japan.
|
摘要 | We report measurements of CP violation parameters in B-0 -> K-0 pi(0) decays based on a data sample of 657 X 10(6)B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We use B-0 -> K-S(0)pi(0) decays for both mixing-induced and direct CP violating asymmetry measurements and B-0 -> K-L(0)pi(0) decays for the direct CP violation measurement. The CP violation parameters obtained are sin2 phi(eff)(1) - +0.67 +/- 0.31(stat) +/- 0.08(syst) and A(K0 pi 0) - +0.14 +/- 0.13(stat) +/- 0.06(syst). The branching fraction of B-0 -> K-0 pi(0) decay is measured to be B(B-0 -> K-0 pi(0)) - (8.7 +/- 0.5(stat) +/- 0.6(syst)) X 10(-6). The observed A(K0 pi 0) value differs by 1.9 standard deviations from the value expected from an isospin sum rule. |
关键词 | BELLE DETECTOR
B DECAYS
VIOLATION
PHYSICS
|
学科领域 | Astronomy & Astrophysics; Physics
|
DOI | 10.1103/PhysRevD.81.011101
|
收录类别 | SCI
|
语种 | 英语
|
WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
|
WOS记录号 | WOS:000274002800001
|
引用统计 |
|
文献类型 | 期刊论文
|
条目标识符 | http://ir.ihep.ac.cn/handle/311005/212924
|
专题 | 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 CP asymmetries in B-0 -> K-0 pi(0) decays[J]. PHYSICAL REVIEW D,2010,81(1).
|
APA |
Belle Collaboration.(2010).Measurement of CP asymmetries in B-0 -> K-0 pi(0) decays.PHYSICAL REVIEW D,81(1).
|
MLA |
Belle Collaboration."Measurement of CP asymmetries in B-0 -> K-0 pi(0) decays".PHYSICAL REVIEW D 81.1(2010).
|
文件名:
|
768.pdf
|
格式:
|
Adobe PDF
|
此文件暂不支持浏览
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论