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Observation of the decay $B_s^0\rightarrow K^0\overlineK^0$

Submit Time: 2016-09-12
Author: Pal, B. and others 1 ;
Institute: 1.Belle Collaboration;


We measure the decay?B0s→K0K?????0?using data collected at the?Υ(5S)?resonance with the Belle detector at the KEKB?e+e??collider. The data sample used corresponds to an integrated luminosity of 121.4?fb?1. We measure a branching fraction?B(B0s→K0K?????0)=[19.6+5.8?5.1(stat.)±1.0(sys.)±2.0(NB0sB????0s)]×10?6?with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.
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Keywords: Belle; ;
Recommended references: Pal, B. and others.(2016).Observation of the decay $B_s^0\rightarrow K^0\overlineK^0$.[ChinaXiv:201609.00808] (Click&Copy)
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[V1] 2016-09-12 09:01:30 chinaXiv:201609.00808V1 Download
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