The K 0 S K 0 S final state in two-photon collisions is studied with the L3 detector at LEP. The mass spectrum is dominated by the formation of the f 2 (1525) tensor meson in the helicity-two state with a two-photon width times the branching ratio into K K of 76 ± 6 ± 11 eV. A clear signal for the formation of the f J ( 1710) is observed and it is found to be dominated by the spin-two helicity-two state. No resonance is observed in the mass region around 2.2 GeV and an upper limit of 1.4 eV at 95% C.L. is derived for the two-photon width times the branching ratio into K 0 S K 0 S for the glueball candidate ξ (2230).
A measurement of the e ϩ e Ϫ → cross section at center-of-mass energies near the J/ mass was reported by BES in Ref.
͓1͔.One of the conclusions of the paper was that the BLT vector glueball model ͓2͔ explanation of the different J/ and Ј decay rates to and K*K was ruled out. As pointed out in an analysis by Hou ͓3͔, this conclusion was unwarranted. No statistically significant distortion of the curve is observed; however, this does not preclude the existence of a vector glueball state. The BLT model is not ruled out by this experiment. ͓1͔
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