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