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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 | 2001/09 |
| 形態種別 | 学術雑誌 |
| 標題 | Measurement of Branching Fractions for B → ππ, Kπ and KK Decays |
| 執筆形態 | 共著 |
| 掲載誌名 | Physical Review Letters:Volume87, 101801, 5pages(2001) |
| 概要 | K. Abe, S. Okuno, et al. [Belle Collaboration], We report measurements of the branching fractions for B0 → π+π-, K+π-, K+K-, and K0π0 and B+ → π+π0, K+π0, K0π+, and K+{K}0, based on 10.4fb-1 of data collected on the υ(4S) resonance with the Belle detector. We find~ B(B0 → π+π-)~ = (0.56+0.23+0.04-0.20-0.05) × 10-5,B(B0 → K+π-) = (1.93+0.34+0.15-0.32-0.06) × 10-5,B(B+ → K+π0) = (1.63+0.35+0.16-0.33-0.18) × 10-5,B(B+ → K0π+) = (1.37+0.57+0.19-0.48-0.18) × 10-5, and B(B0 → K0π0) = (1.60+0.72+0.25-0.59-0.27) × 10-5. We also set upper limits on the branching fractions for B+ → π+π0, B0 → K+K-, and B+ → K+π0. |
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