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Barnyakov, B.A. Shwartz, D.A. Maksimov, D.A. Nikiforov, D.A. Shvedov, D.E. Berkaev, D.N. Grigoriev, D.P. Kashtankin, D.P. Sukhanov, D.Yu. Bolkhovityanov, E.A. Bekhtenev, E.A. Kravchenko, E.A. Simonov, E.B. Levichev, E.M. Baldin, E.V. Starostina, F.A. Emanov, G.A. Savinov, G.M. Tumaikin, G.N. Baranov, G.V. Karpov, I.A. Kuyanov, I.A. Morozov, I.B. Nikolaev, I.I. Morozov, I.N. Okunev, I.V. Ovtin, I.Yu. Basok, K.V. Astrelina, K.Yu. Karukina, K.Yu. Todyshev, L.I. Shekhtman, M.F. Blinov, M.Yu. Barnyakov, N.A. Podgornov, O.I. Meshkov, O.L. Rezanova, O.V. Anchugov, O.V. Belikov, P.A. Piminov, P.B. Cheblakov, P.V. Kasyanenko, P.V. Logachev, S.A. Kononov, S.A. Nikitin, S.B. Oreshkin, S.E. Karnaev, S.I. Mishnev, S.V. Karpov, S.V. Peleganchuk, S.V. Sinyatkin, T.A. Kharlamova, V.A. Kiselev, V.A. Tayursky, V.E. Blinov, V.F. Kulikov, V.G. Prisekin, V.I. Telnov, V.L. Dorohov, V.M. Aulchenko, V.M. Malyshev, V.N. Kudryavtsev, V.N. Zhilich, V.S. Bobrovnikov, V.V. Anashin, V.V. Gambaryan, V.V. Kaminskiy, V.V. Zhulanov, Yu.A. Tikhonov, Yu.I. Maltseva, Yu.V. Usov","submitted_at":"2022-11-24T10:37:47Z","abstract_excerpt":"We present the study of the decay $J/\\psi \\rightarrow \\rho\\pi$. The results are based on of 5.2~million $J/\\psi$ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be $\\B(J/\\psi \\rightarrow \\rho\\pi) = \\big(2.072\\pm 0.017 \\pm 0.062 \\big)\\cdot 10^{-2}$ and $\\B(J/\\psi \\rightarrow \\pi^+\\pi^-\\pi^0) = \\big(1.878 \\pm 0.013 \\pm 0.051 \\big)\\cdot 10^{-2}$, where the first uncertainties are statistical and the second systematic. 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