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Observation of p pbar pi^0 and p pbar eta in psi' decays

M. Ablikim
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Abstract

The processes psi'-->p pbar pi^0 and psi'-->p pbar eta are studied using a sample of 14 million psi' decays collected with the Beijing Spectrometer at the Beijing Electron-Positron Collider. The branching fraction of psi'-->p pbar pi^0 is measured with improved precision as (13.2\pm 1.0\pm 1.5)\times 10^{-5}, and psi'-->p pbar eta is observed for the first time with a branching fraction of (5.8\pm 1.1\pm 0.7)\times 10^{-5}, where the first errors are statistical and the second ones are systematic.

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M. Ablikim. 2005-03-18. Observation of p pbar pi^0 and p pbar eta in psi' decays. https://doi.org/10.1103/physrevd.71.072006

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