Evidence for $Z_{c}^{\pm}$ decays into the $\rho^{\pm} \eta_{c}$ final state
Evidence for $Z_{c}^{\pm}$ decays into the $\rho^{\pm} \eta_{c}$ final state
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 $\sqrt{s}=4.226$, $4.258$, $4.358$, $4.416$, and $4.600$ GeV. Evidence for the decay $\zcpm\to\rhopm\etac$ is reported with a statistical significance of $3.9\sigma$ with various systematic uncertainties taken into account at $\sqrt{s} = …