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Measurements of charmless hadronic b -> s penguin decays in the pi(+)pi K--(+)pi(-) final state and first observation of B-0 -> rho K-0(+)pi(-)
Belle Collaboration
2009
发表期刊PHYSICAL REVIEW D
卷号80期号:5
通讯作者Kyeong, SH (reprint author), Yonsei Univ, Seoul 120749, South Korea.
摘要We report measurements of charmless hadronic B-0 decays into the pi(+)pi K--(+)pi(-) final state. The analysis uses a sample of 657 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at the resonance. The decay B-0 -> rho K-0(+)pi(-) is observed for the first time; the significance is 5.0 sigma and the corresponding partial branching fraction for M-K pi is an element of (0.75, 1.20) GeV/c(2) is [2.8 +/- 0.5(stat) +/- 0.5(syst)] x 10(-6). We also obtain the first evidence for B-0 -> f(0)(980)K+pi(-) with 3.5 sigma significance and for B-0 -> pi(+)pi K-*(0) with 4.5 sigma significance. For the two-body decays B-0 -> rho K-0*(0) and B-0 -> f(0)(980)K*(0), the significance are 2.7 sigma and 2.5 sigma, respectively, and the upper limits on the branching fractions are 3.4 x 10(-6) and 2.2 x 10(-6) at 90% confidence level.
关键词CP-VIOLATION BELLE POLARIZATION DETECTOR PHYSICS
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.80.051103
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000270384900003
引用统计
被引频次:5[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/311005/212908
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. Measurements of charmless hadronic b -> s penguin decays in the pi(+)pi K--(+)pi(-) final state and first observation of B-0 -> rho K-0(+)pi(-)[J]. PHYSICAL REVIEW D,2009,80(5).
APA Belle Collaboration.(2009).Measurements of charmless hadronic b -> s penguin decays in the pi(+)pi K--(+)pi(-) final state and first observation of B-0 -> rho K-0(+)pi(-).PHYSICAL REVIEW D,80(5).
MLA Belle Collaboration."Measurements of charmless hadronic b -> s penguin decays in the pi(+)pi K--(+)pi(-) final state and first observation of B-0 -> rho K-0(+)pi(-)".PHYSICAL REVIEW D 80.5(2009).
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