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On the basis of the recent results of ξ(2230) → π+π-, and ξ(2230) → K+K-, KSKS measured by the BES Collaboration in J/ψ radiative decays, combined with the PS185 experiment of , we argue that because of its very narrow partial decay widths to ππ and (less than 1 MeV), its large production rate in J/ψ radiative decays (BR(J/ψ → γξ) > 2.3 × 10-3), and its flavor-symmetric couplings to ππ and , the ξ(2230) is very likely to to be a JPC = (even)++ glueball.

ξ (2230) Is Likely to Be a Glueball