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arXiv 0712.2659hep-ex
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在Belle观测B_s到φ-γ衰变和寻找B_s到γ-γ衰变

Observation of B_s to phi gamma and Search for B_s to gamma gamma Decays at Belle

Belle Collaboration, J. Wicht

摘要:

我们在KEKB e+e-非对称能量对撞机上用Belle探测器在Upperion(5S)共振处收集的23.6 fb-1数据样本中寻找辐射企鹅衰变B_s到phi γ和B_s到γ γ。我们首次观察到B_s介子在B_s到φ γ模中的辐射企鹅衰变。没有观察到明显的B_s到γ γ信号。

英文摘要:

We search for the radiative penguin decays B_s to phi gamma and B_s to 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 meson in the B_s to phi gamma mode. No significant B_s to gamma gamma signal is observed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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