2008年4月
Improved measurement of time-dependent CP violation in B-0 -> J/psi pi(0) decays
PHYSICAL REVIEW D
- 巻
- 77
- 号
- 7
- 開始ページ
- 071101(R)
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.77.071101
- 出版者・発行元
- AMER PHYSICAL SOC
We report improved measurements of time-dependent CP violation parameters for B-0((B) over bar (0))-> J/psi pi(0) decay. This analysis is based on 535x10(6) B (B) over bar pairs accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters S-J/psi pi(0)=-0.65 +/- 0.21(stat)+/- 0.05(syst) and A(J/psi pi)(0)=+0.08 +/- 0.16(stat)+/- 0.05(syst),which are consistent with standard model expectations.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevD.77.071101
- ISSN : 2470-0010
- eISSN : 2470-0029
- Web of Science ID : WOS:000255457800001