2008年3月
Observation of B(S)(0)->phi gamma and search for B(S)(0)->gamma gamma decays at Belle
PHYSICAL REVIEW LETTERS
- 巻
- 100
- 号
- 12
- 開始ページ
- 1
- 終了ページ
- 6
- 記述言語
- 英語
- 掲載種別
- 研究論文（学術雑誌）
- DOI
- 10.1103/PhysRevLett.100.121801
- 出版者・発行元
- AMER PHYSICAL SOC
We search for the radiative penguin decays B(s)(0)->phi gamma and B(s)(0)->gamma gamma in a 23.6 fb(-1) data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We observe for the first time a radiative penguin decay of the B(s)(0) meson in the B(s)(0)->phi gamma mode and we measure B(B(s)(0)->phi gamma)=(57(-15)(+18)(stat)(-11)(+12)(syst))x10(-6). No significant B(s)(0)->gamma gamma signal is observed and we set a 90% confidence level upper limit of B(B(s)(0)->gamma gamma)< 8.7x10(-6).
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.100.121801
- ISSN : 0031-9007
- Web of Science ID : WOS:000254473800015