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 2001/10
形態種別 学術雑誌
標題 Search for Direct CP Violation in BKπ Decays
執筆形態 共著
掲載誌名 Physical Review D 64, 071101(R), 5pages(2001)
概要 K. Abe, S. Okuno, et al. [Belle Collaboration] , We search for direct CP violation in flavor specific BKπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 106B{B} events recorded on the υ(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry ACP of -0.25 < ACP(Kπ± < 0.37, -0.40 < ACP(Kπ0) < 0.36, and -0.53 < ACP(K0π) < 0.82. By combining the Kπ± and Kπ0 final states, we conclude that -0.22 < ACP(K± + π0)) < 0.25 at the 90% confidence level.