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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 | 2002/12 |
形態種別 | 学術雑誌 |
標題 | Radiative B Meson Decays into K π γ and K ππγ Final States |
執筆形態 | 共著 |
掲載誌名 | Phys.Rev.Lett.89,231801(2002)(6pages) |
概要 | S.Nishida,S.Okuno,et al.[Belle Collaboration],We report observations of radiative B meson decays into the K+π-γ and K+π-π+γ final states. In the B0 → K+π-γ channel, we present evidence for decays via an intermediate tensor meson state with a branching fraction of B(B0 → K2*(1430)0γ) = [1.3±0.5(stat)±0.1(syst)]×10-5. We measure the branching fraction B(B+ → K+π-π+γ) = [2.4±0.5(stat) -0.2+0.4(syst)]×10-5, in which the B+ → K*0π+γ and B+ → K+ρ0γ channels dominate. The analysis is based on a data set of 29.4fb-1 recorded by the Belle experiment at the KEKB collider. |