Measurement of $$J/\psi $$ decays into final states $$2(\pi ^{+}\pi ^{-})\pi ^{0},K^{+}K^{-}\pi ^{+}\pi ^{-}\pi ^{0},\,2(\pi ^{+}\pi ^{-})$$ and $$K^{+}K^{-}\pi ^{+}\pi ^{-}$$

Abstract Using the 1.32 $$\hbox {pb}^{-1}$$ pb - 1 statistics collected at $$J/\psi $$ J / ψ peak with KEDR detector VEPP-4M $$e^{+}e^{-\, }$$ e + collider, we measured branching fractions of meson decays to final states 2( $$\pi ^{+}\pi ^{-})\pi ^{0}$$ π ) 0 , $$K^{+}K^{-}\pi ^{-}\pi K ^{-})$$ and ^{-}$$ . The results obtained for \rightarrow → K^{+}K^{-}\pi contradict measurements performed by other groups in last century, but agree well recent BABAR BESIII collaborations.