Measurements of $J/\ensuremath{\psi}$ decays into $\ensuremath{\omega}{\ensuremath{\pi}}^{0}$, $\ensuremath{\omega}\ensuremath{\eta}$, and $\ensuremath{\omega}{\ensuremath{\eta}}^{\ensuremath{'}}$

Measurements of $J / ψ$ decays into $ω π^{0}$ , $ω η$ , and $ω η^{'}$

M. Ablikim et al. (BES Collaboration)

Phys. Rev. D 73, 052007 – Published 15 March 2006

Abstract

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