Yet another way to measure $γ$

Abstract

We show that the CKM phase $2 β+γ$ can be extracted from measurement of the time dependent rates in the decays $\bar{B}^0 \to D^{(*)\pm} M^\mp$ and $B^0 \to D^{(*)\pm} M^\mp$, where $M=a_0$, $π(1300)$, $b_1$, $a_2$, $π_2$, $ρ_3$. These channels have a large asymmetry between decays of $\bar{B}^0$ and $B^0$ into the same final state. Even though the branching ratios are small, their sensitivity to $γ$ can be competitive with decays into $D^{(*)}$ and $(π,ρ,a_1)$.