Measurement of charmless B decays to eta K-* and eta rho
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2007 |
| 卷号 | 75期号:9 |
| 关键词 | LUND MONTE-CARLO JET FRAGMENTATION MESON DECAYS E+E-PHYSICS BELLE DETECTOR |
| 通讯作者 | Wang, CH (reprint author), Natl Cent Univ, Miaoli, Taiwan. |
| 英文摘要 | We report measurements of branching fractions and CP asymmetries for B ->eta K-* and B ->eta rho decays. These results are obtained from a 414 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the following branching fractions: B(B-0 ->eta K-*0)=(15.2 +/- 1.2 +/- 1.0)x10(-6) and B(B+->eta K*+)=(19.3(-1.9)(+2.0)+/- 1.5)x10(-6), where the first error is statistical and the second systematic. We also find a 2.7 sigma excess in the B+->eta rho(+) mode and measure B(B+->eta rho(+))=(4.1(-1.3)(+1.4)+/- 0.4)x10(-6)< 6.5x10(-6) at 90% confidence level. For B-0 ->eta rho(0) decays, we determine the upper limit B(B-0 ->eta rho(0))< 1.9x10(-6) at 90% confidence level. The partial rate asymmetries are A(CP)(eta K-*0)=0.17 +/- 0.08 +/- 0.01, A(CP)(eta K*+)=0.03 +/- 0.10 +/- 0.01, and A(CP)(eta rho(+))=-0.04(-0.32)(+0.34)+/- 0.01. |
| 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:000246891300010 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212819]  |
| 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 | Belle Collaboration. Measurement of charmless B decays to eta K-* and eta rho[J]. PHYSICAL REVIEW D,2007,75(9). |
| APA | Belle Collaboration.(2007).Measurement of charmless B decays to eta K-* and eta rho.PHYSICAL REVIEW D,75(9). |
| MLA | Belle Collaboration."Measurement of charmless B decays to eta K-* and eta rho".PHYSICAL REVIEW D 75.9(2007). |
入库方式： OAI收割
来源：高能物理研究所
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