4π decay modes of the f0(1500) resonance

We investigate the two-body decay modes ρρ, ππ∗(1300) and σσ of the f0(1500), all leading to the 4π decay channel, in a three-state mixing scheme, where the f0(1500) is a mixture of the lowest-lying scalar glueball with the nearby isoscalar states of the 0++ QQ̄ nonet. In the leading order of this scheme, the decay mechanism of the f0(1500) proceeds dominantly via its quarkonia components, which can be described in the framework of the 3P0 QQ̄ pair creation model. We predict the hierarchy of decay branching ratios B with B(ρρ)≳B(ππ)≳B(σσ)>B(ππ∗), providing a key signature for the proposed mixing scheme in this leading order approach.