First observation of the decay B0 →ψ (2S)π0

Belle Collaboration

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8 Citations (Scopus)


We report a measurement of the B0→ψ(2S)π0 branching fraction based on the full (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.

Original languageEnglish
Article number031101
JournalPhysical Review D
Issue number3
Publication statusPublished - 2016 Feb 23

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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