Measurement of CP asymmetries in B-0 -> K-0 pi(0) decays

doi:10.1103/PhysRevD.81.011101

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	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	被引频次：7[WOS] [WOS记录] [WOS相关记录]
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).

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