Known decays of pi0

(Only the first generation of decays, no cascades)

Final state Branching
$\pi^{0}_{}$ $\to$ $\gamma^{}_{}$ $\gamma^{}_{}$ 9.8e-1
$\pi^{0}_{}$ $\to$ $e^{+}_{}$ $e^{-}_{}$ $\gamma^{}_{}$ 1.1e-2
$\pi^{0}_{}$ $\to$ $e^{+}_{}$ $e^{+}_{}$ $e^{-}_{}$ $e^{-}_{}$ 3.3e-5
$\pi^{0}_{}$ $\to$ $e^{+}_{}$ $e^{-}_{}$ 6.5e-8