Measurement of branching fractions of color-suppressed decays of the (B)over-bar(0) meson to D-(*)0 pi(0), D-(*)0 eta, D-(*)0 omega, and D-0 eta '
文献类型:期刊论文
作者 | BaBar Collaboration |
刊名 | PHYSICAL REVIEW D
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出版日期 | 2004 |
卷号 | 69期号:3 |
关键词 | B-MESONS NONLEPTONIC DECAYS FACTORIZATION SEARCH LIGHT |
通讯作者 | Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France. |
英文摘要 | Using a sample of 88.8x10(6) B (B) over bar events collected with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center, we measure the branching fractions of seven color-suppressed B-meson decays: B((b) over bar (0)-->D(0)pi(0))=[2.9+/-0.2(stat)+/-0.3(syst)]x10(-4), B((B) over bar (0)-->D(*0)pi(0))=[2.9+/-0.4(stat)+/-0.5(syst)]x10(-4), B((B) over bar (0)-->D(0)eta)=[2.5+/-0.2(stat)+/-0.3(syst)]x10(-4), (0)-->D(*0)eta)=[2.6+/-0.4(stat)+/-0.4(syst)]x10(-4), B((B) over bar (0)-->D(0)omega)=[3.0+/-0.3(stat)+/-0.4(syst)]x10(-4), B((B) over bar (0)-->D(*0)omega)=[4.2+/-0.7(stat)+/-0.9(syst)]x10(-4), and B((B) over bar (0)-->D(0)eta('))=[1.7+/-0.4(stat)+/-0.2(syst)]x10(-4). We set the 90% confidence-level upper limit: B((B) over bar (0)-->D(*0)eta('))<2.6x10(-4). The channels (B) over bar (0)-->D(*0)eta, D(*0)omega, and D(0)eta(') are seen with more than five-sigma statistical significance. All of these branching fractions are significantly larger than theoretical expectations based on the "naive" factorization model. |
学科主题 | Astronomy & Astrophysics; Physics |
类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000220001600007 |
公开日期 | 2016-02-26 |
源URL | [http://ir.ihep.ac.cn/handle/311005/212364] ![]() |
专题 | 高能物理研究所_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 | BaBar Collaboration. Measurement of branching fractions of color-suppressed decays of the (B)over-bar(0) meson to D-(*)0 pi(0), D-(*)0 eta, D-(*)0 omega, and D-0 eta '[J]. PHYSICAL REVIEW D,2004,69(3). |
APA | BaBar Collaboration.(2004).Measurement of branching fractions of color-suppressed decays of the (B)over-bar(0) meson to D-(*)0 pi(0), D-(*)0 eta, D-(*)0 omega, and D-0 eta '.PHYSICAL REVIEW D,69(3). |
MLA | BaBar Collaboration."Measurement of branching fractions of color-suppressed decays of the (B)over-bar(0) meson to D-(*)0 pi(0), D-(*)0 eta, D-(*)0 omega, and D-0 eta '".PHYSICAL REVIEW D 69.3(2004). |
入库方式: OAI收割
来源:高能物理研究所
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