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 2003/02
形態種別 学術雑誌
標題 Study of time-dependent CP-violating asymmetries in b → s{q}q decays
執筆形態 共著
掲載誌名 Phys. Rev. D 67, 031102(R) (2003) (6 pages)
概要 K. Abe, S. Okuno, et al. [Belle Collaboration]
, We present a measurement of CP-violation parameters in the b → s{q} q penguin transitions (q = s,u,d) based on a 78 fb-1 data sample collected at the υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson is reconstructed in the φ KS0, K+K-KS0, or η KS0 decay channel, and the flavor of the accompanying B meson is identified from its decay products. CP violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays.