研究者情報 | 神奈川大学

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	2002/10
形態種別	学術雑誌
標題	Observation of {B}⁰ → D^(*)0p{p}
執筆形態	共著
掲載誌名	Phys.Rev.Lett.89，151802（2002）(6pages)
概要	K.Abe，S.Okuno，et al.［Belle Collaboration］，The B meson decay modes B → Dp{p} and B → D^p{p} have been studied using 29.4fb^-1 of data collected with the Belle detector at KEKB. The {B}⁰ → D⁰p{p} and {B}⁰ → D^0p{p} decays have been observed for the first time with branching fractions B({B}⁰ → D⁰p{p}) = (1.18±0.15±0.16)×10^-4 and B({B}⁰ → D^0p{p}) = (1.20_-0.29^+0.33±0.21)×10^-4. No signal has been found for the B⁺ → D⁺p{p} and B⁺ → D^+p{p} decay modes, and the corresponding upper limits at 90% C.L. are presented.