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Time-dependent CP-violating asymmetries in b -> s(q)over-barq transitions
Belle Collaboration
2005
发表期刊PHYSICAL REVIEW D
卷号72期号:1
通讯作者Chen, KF (reprint author), Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
摘要We present new measurements of CP-violation parameters in B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), and K-S(0)pi(0) decays based on a sample of 275 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. The combined result for the B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), K-S(0)pi(0), and previously reported (KSKSKS0)-K-0-K-0 decays differs from the SM expectation by 2.4 standard deviations.
关键词B-DECAYS BELLE PHYSICS
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.72.012004
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000230889400008
引用统计
被引频次:64[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/311005/212575
专题实验物理中心
作者单位中国科学院高能物理研究所
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Belle Collaboration. Time-dependent CP-violating asymmetries in b -> s(q)over-barq transitions[J]. PHYSICAL REVIEW D,2005,72(1).
APA Belle Collaboration.(2005).Time-dependent CP-violating asymmetries in b -> s(q)over-barq transitions.PHYSICAL REVIEW D,72(1).
MLA Belle Collaboration."Time-dependent CP-violating asymmetries in b -> s(q)over-barq transitions".PHYSICAL REVIEW D 72.1(2005).
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