Productions of σmeson in J/ψand ψ(2s) decays

Bing An Li

Productions of scalar meson in the decays of J/ψ-->ω+σ, J/ψ-->γ+σand ψ(2s)-->ω+σ, γ+σand ee^+ annihilations in the regions of J/ψand ψ(2s) are studied.