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 2002/04
形態種別 学術雑誌
標題 Precise Measurement of B Meson Lifetimes with Hadronic Decay Final States
執筆形態 共著
掲載誌名 Physical Review Letters:Volume88, 171801 (2002)(6pages)
概要 K. Abe, S. Okuno, et al. [Belle Collaboration] ,
The lifetimes of the {B}0 and B- mesons are extracted from 29.1fb-1 of data collected with the Belle detector at the KEK B factory. A fit to the decay length differences of neutral and charged B meson pairs, measured in events where one of the B mesons is fully reconstructed in several hadronic modes, yields τ{B}0 = 1.554±0.030 (stat)±0.019 (syst)ps, τB- = 1.695±0.026 (stat)±0.015 (syst)ps, and τB- / τ{B}0 = 1.091±0.023 (stat)±0.014 (syst).