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1. chinaXiv:201609.00825 [pdf]

First observation of the decay B$^0\to \psi$(2S)$\pi^0$

Chobanova, V. and others
Subjects: Physics >> Nuclear Physics

We report a measurement of the?B0→ψ(2S)π0?branching fraction based on the full?Υ(4S)?data set of?772×106?BB??pairs collected by the Belle detector at the KEKB asymmetric-energy?e+e??collider. We obtain?B(B0→ψ(2S)π0)=(1.17±0.17(stat)±0.08(syst))×10?5. The result has a significance of 7.2 standard deviations and is the first observation of the decay?B0→ψ(2S)π0.

submitted time 2016-09-12 Hits1011Downloads626 Comment 0

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