Scalar f 0 ( 980 ) and σ ( 500 ) meson exchange in φ decays into π 0 π 0 γ

Abstract

The complementarity between Chiral Perturbation Theory and the Linear Sigma Model is exploited to study π0π0 production in φ radiative decays, where the effects of the f0(980) scalar resonance, and those of its more controversial σ(500) partner, should manifest via the φ → K+K−(γ) → π0π0γ decay chain. The recently reported data on φ → π0π0γ coming from the… (More)

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