The mixing of the f0(1370), f0(1500) and f0(1710) and the search for the scalar glueball

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Abstract
For the first time a complete data set of the two-body decays of the f0(1370), f0(1500) and f0(1710) into all pseudoscalar mesons is available. The implications of these data for the flavour content for these three f0 states is studied. We find that they are in accord with the hypothesis that the scalar glueball of lattice QCD mixes with the qqbar nonet that also exists in its immediate vicinity. We show that this solution also is compatible with the relative production strengths of the f0(1370), f0(1500) and f0(1710) in pp central production, ppbar annihilations and J/psi radiative decays.
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