Singlet-octet-glueball mixing of scalar mesons

The mixing angles between scalar isoscalar resonances and a glueball are determined from their decays into two pseudoscalar mesons. For f0(1370) f0(1500), at most small component is admitted by the data. decay modes of f0(1710), f0(1770), f0(2020), f0(2100) require significant fractions. Above this mass, errors in frequencies become too large to extract component. summation all observed fractions up 2100 MeV yields (78±18)%. as function mass consistent with 1865 width 370 suggested measurement yield mesons radiative J/ψ decays.