Evidence for $Z_c^{\pm }$ decays into the ${\rho }^{\pm }{\eta }_c$ final state

M. Ablikim, M. N. Achasov, S. Ahmed +458

We study $e^{+}{e}^{-}$ collisions with a ${\pi }^{+}{\pi }^{-}{\pi }^0{\eta }_c$ final state using data samples collected with the BESIII detector at center-of-mass energies $\sqrt{s}=4.226$, $4.258…