Measurement of the branching fraction of $J/\psi \to \rho \pi$ at KEDR

V. V. Anashin, O. V. Anchugov, A. V. Andrianov +91

We present the study of the decay $J/\psi \to \rho \pi$. The results are based on of 5.2~million $J/\psi$ events collected by the KEDR detector at the VEPP-4M collider. The branching fr…