Observation Of J-Psi Radiative Decay To Pseudoscalar-Omega-Omega

We present evidence for the radiative decay J/\\ensuremath{\\psi}\\ensuremath{\\rightarrow}\\ensuremath{\\gamma}\\ensuremath{\\omega}\\ensuremath{\\omega} with a branching fraction of (1.76\\ifmmode\\pm\\else\\textpm\\fi{}0.09\\ifmmode\\pm\\else\\textpm\\fi{}0.45)\\ifmmode\\times\\else\\texttimes\\fi{}${10}^{\\mathrm{\\ensuremath{-}}3}$. The \\ensuremath{\\omega}\\ensuremath{\\omega} invariant-mass distribution peaks at 1.8 GeV/${c}^{2}$, just above threshold. Analysis of angular correlations indicates that \\ensuremath{\\omega}\\ensuremath{\\omega} system below 2 GeV/${c}^{2}$ is predominantly pseudoscalar. Upper limits are presented for the branching fractions of \\ensuremath{\\omega}\\ensuremath{\\omega} decays of the \\ensuremath{\\theta}(1690), the ${g}_{T}$ states near 2.2 GeV/${c}^{2}$, and the ${\\ensuremath{\\eta}}_{c}$.