Summary of the properties of the strong ppbar mass threshold enhancement X(1860) So far, it is only observed in Jhy radiative decays: It has production properties similar to n' meson It could have strong coupling to gluons as n'meson. It could have the largest decay bR to ppar among all PDG particles It has strong coupling to pparSummary of the properties of the strong ppbar mass threshold enhancement X(1860) § So far, it is only observed in J/ radiative decays: • It has production properties similar to ’ meson. • It could have strong coupling to gluons as ’ meson. § It could have the largest decay BR to ppbar among all PDG particles: • It has strong coupling to ppbar