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 2002/08
形態種別 学術雑誌
標題 Measurement of the Oscillation Frequency for B0-{B}0 Mixing using Hadronic {-B}0 Decays
執筆形態 共著
掲載誌名 Phys.Lett.B542(2002)
巻・号・頁 207-215頁
概要 T.Tomura,S.Okuno,et al.[Belle Collaboration],The oscillation frequency of B0-{B}0 mixing (δmd) has been measured using 29.1 fb-1 of datacollected with the Belle detector at KEKB. This measurement is made through the distributions of the proper decay time difference of B pairs in events tagged as same- and opposite-flavor decays. In each event, one B is fully reconstructed in a flavor-specific hadronic decay mode, while the flavor of the other is extracted through a likelihood calculated from the b-flavor information carried in its final decay products. We obtain δmd=(0.528±0.017±0.011)ps-1, where the first error is statistical and the second error is systematic.