Production of scalar KK¯molecules in φ radiative decays

The potentialities of the production of the scalar $K\overline{K}$ molecules in φ radiative decays are considered beyond the narrow resonance width approximation. It is shown that $B(\phi \to \gamma f_0{(a}_0)\to \gamma \pi \pi \left(\pi \eta \right))$ ≈$\left(1\mathrm{}-2\right)\times {10}^{-5},$ $B(\phi \to \gamma {(f}_0{+a}_0)$→$\gamma K^{+}{K}^{-})\lesssim {10}^{-6},$ and $B(\phi \to \gamma {(f}_0{+a}_0)$→$\gamma K_S{K}_S)<5\mathrm{}\times {10}^{-8}.$ The mass spectra in the ππ, πη, $K^{+}{K}^{-}$ channels are calculated. The imaginary part of the amplitude $\phi \to \gamma f_0{(a}_0)$ is calculated analytically. The phase of the scalar resonance production amplitude that causes the interference patterns in the reaction $e^{+}{e}^{-}\to \gamma {\pi }^{+}{\pi }^{-}$ in the φ meson mass region is obtained.