We observe a narrow enhancement near $2{m}_{p}$ in the invariant mass spectrum of $p\overline{p}$ pairs from radiative $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}p\overline{p}$ decays. No similar structure is seen in $J/\ensuremath{\psi}\ensuremath{\rightarrow}{\ensuremath{\pi}}^...
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