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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 |
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言語種別 | 日本語 |
発行・発表の年月 | 2002/08 |
形態種別 | 学術雑誌 |
標題 | Observation of B → D(*) K- K0(*) decays |
執筆形態 | 共著 |
掲載誌名 | Phys.Lett.B542(2002) |
巻・号・頁 | 171-182頁 |
概要 | A.Drutskoy,S.Okuno,et al.[Belle Collaboration],The B → D(*) K- K(*)0 decays have been observed for the first time. The branching fractions of the B → D(*) K- K(*)0 decay modes are measured. Significant signals are found for the B → D(*) K- K*0 and B- → D0 K- K0S decay modes. The invariant mass and polarization distributions for the K-K*0 and K-K0S subsystems have been studied. For the K-K*0 sybsystem these distributions agree well with those expected for two-body B → D(*) a1-(1260) decays, with a1-(1260) → K- K*0. The analysis was done using 29.4 fb-1 of data collected with the Belle detector at the e+ e- asymmetric collider KEKB. |