 
|
|
|
オクノ ショウジ
Okuno Shoji 奥野 祥二 所属 神奈川大学 情報学部 システム数理学科 職種 助教 |
|
| 言語種別 | 日本語 |
| 発行・発表の年月 | 2002/11 |
| 形態種別 | 学術雑誌 |
| 標題 | Observation of B± → ω K± Decay |
| 執筆形態 | 共著 |
| 掲載誌名 | Phys.Rev.Lett.89，191801（2002）(6pages) |
| 概要 | R.-S.Lu，S.Okuno，et al.［Belle Collaboration］，We report the first observation of the charmless two-body mode B±→ ω K± decay, and a new measurement of the branching fraction for the B± → ωπ± decay. The measured branching fractions are B(B± → ω K±) = (9.2-2.3+2.6±1.0)×10-6 and B(B± → ωπ±) = (4.2-1.8+2.0±0.5)×10-6. We also measure the partial rate asymmetry of B± → ω K± decays and obtain Acp = -0.21±0.28±0.03. The results are based on a data sample of 29.4fb-1 collected on the υ(4S) resonance by the Belle detector at the KEKB e+e- collider. |
Copyright © Kanagawa University. All Rights Reserved.