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The features of the Resonance Chiral Theory (RChT) related to the descriptionof the lightest scalar resonances, sigma, f0(980) and a0(980), are discussed.Major attention is paid to the fits of the invariant mass distributions in theradiative decays of the phi(1020) meson. The study of the scalar sector in RChTis motivated by the success of the theory predictive power in numerousprocesses with other types of resonances. We conclude that RChT is sufficientlyflexible to describe these decays, however the further quantitative improvementis required. The technical work-outs and related important questions areoutlined.

On modeling the scalar meson dynamics with Resonance Chiral Theory