The decays

We study the decay phi --> gammaK(+)K(-) taking into account the scalar meson production phi --> gamma(a(0) + f(0)) --> gammaK(+)K(-) and the final-state radiation. We note that the relative sign between the final-state radiation amplitude and the scalar-meson production amplitude is fixed in the K+K- loop model which describes data on the phi --> gammaf(0) --> gammapipi and phi --> gammapieta --> gammapieta decays. As consequence, this model predicts the definite interference between the final-state radiation and the scalar resonance production amplitudes. We calculate the mass spectra of the phi --> gammaK(+)K(-) decay and the differential cross sections for e(+)e(-) --> phi --> gammaK(+)K(-) and for e(+)e(-) --> phi --> gammaK(0)(K) over bar (0) reactions. (C) 2002 MAIK "Nauka/Interperiodica".