Known decays of D_1(H)-

(Only the first generation of decays, no cascades)

Final state Branching
$D^{-}_{1}H$ $\to$ $D'^{-}_{}(2010)$ $\pi^{0}_{}$ 3.3e-1
$D^{-}_{1}H$ $\to$ $\bar{D}'^{0}_{}(2007)$ $\pi^{-}_{}$ 6.6e-1