The Scalar Quarkonium Spectrum and Quarkonium-Glueball Mixing
  We evaluate the valence approximation to the mass of scalar quarkonium and to the mixing energy between scalar quarkonium and the lightest scalar glueball for a range of different lattice sizes and quark masses. Our results support the identification of $f_0(1710)$ as the lightest scalar glueball. 
W. Lee and D. Weingarten