| Branching fraction measurements of charged B decays to K*+K+K-, K*+pi K-+(-), K*+K+pi(-) and K*+pi(+)pi(-) final states |
| BaBar Collaboration
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| 2006
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发表期刊 | PHYSICAL REVIEW D
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卷号 | 74期号:5 |
通讯作者 | Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France.
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摘要 | Branching fraction and asymmetry measurements of charmless B+-> K(*+)h(1)(+)h(2)(-) (where h(1,2)=K, pi) decays are presented, using a data sample of 232x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. Using a maximum likelihood fit, the following branching fraction results were obtained: B(B+-> K*+K+K-)=(36.2 +/- 3.3 +/- 3.6)x10(-6) and B(B+-> K*+pi(+)pi(-))=(75.3 +/- 6.0 +/- 8.1)x10(-6). Upper limits were set for B(B+-> K*+pi K-+(-))< 11.8x10(-6) and B(B+-> K*+K+pi(-))< 6.1x10(-6) at 90% confidence level. The charge asymmetries for the decays B+-> K*+K+K- and B+-> K*+pi(+)pi(-) were measured to be A(K)(*)KK=0.11 +/- 0.08 +/- 0.03 and A(K)(*)pi pi=0.07 +/- 0.07 +/- 0.04, respectively. The first error quoted on branching fraction and asymmetry measurements is statistical and the second systematic. |
关键词 | MESONS
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学科领域 | Astronomy & Astrophysics; Physics
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DOI | 10.1103/PhysRevD.74.051104
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收录类别 | SCI
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语种 | 英语
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WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
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WOS记录号 | WOS:000240873900004
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/212717
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专题 | 实验物理中心
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作者单位 | 中国科学院高能物理研究所
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推荐引用方式 GB/T 7714 |
BaBar Collaboration. Branching fraction measurements of charged B decays to K*+K+K-, K*+pi K-+(-), K*+K+pi(-) and K*+pi(+)pi(-) final states[J]. PHYSICAL REVIEW D,2006,74(5).
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APA |
BaBar Collaboration.(2006).Branching fraction measurements of charged B decays to K*+K+K-, K*+pi K-+(-), K*+K+pi(-) and K*+pi(+)pi(-) final states.PHYSICAL REVIEW D,74(5).
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MLA |
BaBar Collaboration."Branching fraction measurements of charged B decays to K*+K+K-, K*+pi K-+(-), K*+K+pi(-) and K*+pi(+)pi(-) final states".PHYSICAL REVIEW D 74.5(2006).
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文件名:
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566.pdf
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Adobe PDF
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