 
|
|
|
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 | 2003/12 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Observation of a Narrow Charmoniumlike State in Exclusive B± → K±π+π-J/ψ Decays |
| 執筆形態 | 共著 |
| 掲載誌名 | Phys. Rev. Lett. 91, 262001 (2003) (6 pages) |
| 著者・共著者 | S.-K. Choi, S. L. Olsen, S. Okuno et al. [The Belle Collaboration] |
| 概要 | We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B± → K±π+π-J/ψ. This state, which decays into π+π-J/ψ, has a mass of 3872.0±0.6(stat)±0.5(syst) MeV, a value that is very near the MD0 + MD*0 mass threshold. The results are based on an analysis of 152M B-{B} events collected at the υ(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10σ. ,BELLE-69. |
Copyright © Kanagawa University. All Rights Reserved.