BESIII'te J/Ψ → ω π0 π0 analizi

Using a sample of 1.3 billion J/ψ events collected with the BESIII detector at the BEPCII storage ring, the decay channel J/ψ → ωπ0 π 0 has been studied. Two of the lightest tetraquark candidates, f0 (500) (a.k.a. σ) and f0 (980) have been searched for. A Dalitz Plot analysis has been performed and in additon to f0 (500) (σ) and f0 (980), f2 (1270), b1 (1325), ρ (1450), and f2 (2300) have been observed. The analysis and background study indicate that this channel is suitable for a detailed study of the resonances through a Partial Wave Analysis.