Chiral Phenomenological Relations between Rates of Rare Radiative Decay of Kaon to Pion and leptons and the meson Formfactors

V. Pervushin, V. Shilin

In framework of the chiral perturbation theory we obtain the phenomenological relations between decay branches of rare radiative kaon to pion and leptons $K^{+}\to {\pi }^{+}{l}^{+}{l}^{-}$ and…