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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 | 2002/04 |
| 形態種別 | 学術雑誌 |
| 標題 | Measurement of Lifetime Difference in D0 Meson Decays |
| 執筆形態 | 共著 |
| 掲載誌名 | Physical Review Letters:Volume88, 162001 (2002) |
| 概要 | K. Abe, S. Okuno, et al. [Belle Collaboration],We
report a measurement of the D0 － {D}0 mixing parameter yCP using 23.4fb-1 of data collected near the υ(4S) resonance with the Belle detector at KEKB. yCP is measured from the lifetime difference of D0 mesons decaying into the K-π+ state and the CP-even eigenstate K-K+. We find yCP = (－0.5 ± 1.0+0.7-0.8) × 10-2, where the first error is statistical and the second is systematic, corresponding to a 95% confidence interval －0.030 < yCP < 0.020. |
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