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Measurements of $Jψ$ decays into $ωπ^0$, $ωη$, and $ωη'$

M. Ablikim
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Abstract

Based on $5.8 \times 10^7 Jψ$ events collected with BESII at the Beijing Electron-Positron Collider (BEPC), the decay branching fractions of $Jψ\toωπ^0$, $ωη$, and $ωη'$ are measured using different $η$ and $η'$ decay modes. The results are higher than previous measurements. The $ωπ^0$ electromagnetic form factor is also obtained.

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M. Ablikim. 2006-03-21. Measurements of $Jψ$ decays into $ωπ^0$, $ωη$, and $ωη'$. https://doi.org/10.1103/physrevd.73.052007

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