0(-GLUEBALL(+))Q(Q)OVER-BAR-STATE MIXING IN THE MASS REGION NEAR 1500MEV/

Based on the results of the K-matrix fit of the (IJ(PC) = 00(++)) wave [V.V. Anisovich, Yu.D. Prokoshkin and A.V. Sarantsev, Phys. Lett. B 3 89 (1996) 388; V.V. Anisovich and A.V. Sarantsev, Phys. Lett. B 382 (1 996) 429], we analyze the analytic structure of the amplitude and q (q ) over bar/glueball content of resonances in the mass region 1200-1900 MeV, where an extra state for q (q) over bar-systematics exists being a good candidate for the lightest scalar glueball. Our analysis shows that the pure glueball state is dispersed over three resonances: f(0) (1300), f(0)(1500) and f(0)(1530(-250)(+90)), while the glueball admix ture in f(0)(1750) is small. The broad resonance f(0)(1530(-250)(+90)) is the descendant of the lightest pure glueball. The mass of the pure glueball is 1630 +/- (70)(30) MeV, in agreement with Lattice calculat ion results [F.E. Close and M.J. Teper, On the lightest scalar gluebal l, preprint RAL-96-040 (1996); G.S. Ball et al., Phys. Lett. B 309 (19 93) 378; J. Sexton, A. Vaccarino and D. Weingarten, Phys. Rev. Lett. 7 5 (1995) 4563].