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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 | 2002/09 |
形態種別 | 学術雑誌 |
標題 | Observation of the Decay B0 → D± D*∓ |
執筆形態 | 共著 |
掲載誌名 | Phys. Rev. Lett. 89, 122001 (2002)(6pages) |
概要 | K. Abe, S. Okuno, et al. [Belle Collaboration] , We report the first observation of the decay B0 → D±D*∓ with the Belle detector at the KEKB e+e- Collider operated at the υ(4S) resonance. The sum of branching fractions B(B0 → D+D*-) + B(B0 → D-D*+) is measured to be (1.17±0.26-0.25+0.22)×10-3 using the full reconstruction method where both charmed mesons from B0 decays are reconstructed. A consistent value [(1.48±0.38-0.31+0.28)×10-3] is obtained using a partial reconstruction technique that uses only the slow pion from the D*- → {D}0π- decay and a fully reconstructed D+ to reconstruct the B0. |