Radiative decays with scalar mesons a0(980) and f0(980) in Resonance Chiral Theory

The ϕ(1020) radiative decays form a good playground for study of the low-lying a0(980) and f0(980) scalar mesons. The complicated interplay of kaon loop mechanism, isoscalar meson mixing and momentum dependence of the effective couplings manifests itself in the invariant mass distributions in the ϕ(1020)→π0π0γ and πηγ spectra. These distributions are fitted in framework of Resonance Chiral Theory.