オクノ ショウジ   Okuno Shoji
  奥野 祥二
   所属   神奈川大学  工学部 情報システム創成学科
   職種   助教
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.