 
|
|
|
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 |
|
| 言語種別 | 日本語 |
| 発行・発表の年月 | 2002/05 |
| 形態種別 | 学術雑誌 |
| 標題 | Study of three-body charmless B decays |
| 執筆形態 | 共著 |
| 掲載誌名 | Physical Review D 65，92005（2002）（11 pages） |
| 概要 | A.Garmash，S.Okuno，et al.［Belle Collaboration］，We report on a study of three-body charmless decays B+ → K+h+h- based on a 29.1 fb-1 data sample collected with the Belle detector．With no assumptions on the intermediate mechanisms, the following three-body branching fractions have been measured for the first time：B(B+ → K+π-π+) = (55.6±5.8±7.7)×10-6 and B(B+ → K+K-K+) = (35.3±3.7±4.5)×10-6．We present the first observation of the decay B+ → f0(980)K+ with a branching fraction product of B(B+ → f0(980)K+)×B(f0(980) → π+π-) = (9.6-2.3 - 1.5 - 0.8+2.5 + 1.5 + 3.4)×10-6．This is the first reported example of a B meson decay to a scalar pseudoscalar final state．We also report the first observation of B+ → K*(892)0π+ decay with a branching fraction of B(B+ → K*(892)0π+) = (19.4-3.9 - 2.1 - 6.8+4.2 + 2.1 + 3.5)×10-6. |
Copyright © Kanagawa University. All Rights Reserved.