Study of Scalar Resonance in the Ωϕ System in Pion-Be Interaction at Momentum of 29 GeV/c

The reaction π^ - Be→A 1ptω (782)ϕ (1020) is studied at the VES setup. In the ωϕ mass spectrum, the peak near the threshold with quantum numbers J^PC = 0^ + + dominates. It is identified as f_0(1710) . The reaction cross section is measured and the product Br(f_0→ππ )Br(f_0→ωϕ ) is obtained in the one-pion-exchange approximation. The value obtained leads to a large partial width of the radiative decay J/ψ→γf_0 , which is the evidence of a significant glueball component for this resonance.