Known decays of eta_prime

(Only the first generation of decays, no cascades)

Final state Branching
$\eta'^{}_{}$ $\to$ $\eta^{}_{}$ $\pi^{+}_{}$ $\pi^{-}_{}$ 4.3e-1
$\eta'^{}_{}$ $\to$ $\eta^{}_{}$ $\pi^{0}_{}$ $\pi^{0}_{}$ 2.1e-1
$\eta'^{}_{}$ $\to$ $\rho^{0}_{}(770)$ $\gamma^{}_{}$ 2.9e-1
$\eta'^{}_{}$ $\to$ $\omega^{}_{}(782)$ $\gamma^{}_{}$ 2.7e-2
$\eta'^{}_{}$ $\to$ $\gamma^{}_{}$ $\gamma^{}_{}$ 2.2e-2
$\eta'^{}_{}$ $\to$ $\pi^{0}_{}$ $\pi^{0}_{}$ $\pi^{0}_{}$ 1.6e-3
$\eta'^{}_{}$ $\to$ $\mu^{+}_{}$ $\mu^{-}_{}$ $\gamma^{}_{}$ 1.0e-4
$\eta'^{}_{}$ $\to$ $\pi^{+}_{}$ $\pi^{-}_{}$ $\pi^{0}_{}$ 3.6e-3
$\eta'^{}_{}$ $\to$ $\pi^{+}_{}$ $\pi^{-}_{}$ $e^{+}_{}$ $e^{-}_{}$ 2.4e-3