Measurement ofCPobservables for the decaysB±→DCP0K*±

Using a sample of $232\times {10}^6$ ${\rm Y}(4S)\to B\overline{B}$ events collected with the BABAR detector at the PEP-II $B$ Factory in 1999–2004, we study $B^{-}\to D^0{K}^{*}(892{)}^{-}$ decays where $K^{*-}\to K_S^0{\pi }^{-}$ and $D^0\to K^{-}{\pi }^{+}$, $K^{-}{\pi }^{+}{\pi }^0$, $K^{-}{\pi }^{+}{\pi }^{+}{\pi }^{-}$ (non-$CP$ final states); $K^{+}{K}^{-}$, ${\pi }^{+}{\pi }^{-}$ ($CP+$ eigenstates); $K_S^0{\pi }^0$, $K_S^0\varphi$, and $K_S^0\omega$ ($CP-$ eigenstates). We measure four observables that are sensitive to the angle $\gamma$ of the CKM unitarity triangle; the partial-rate charge asymmetries ${\mathcal{A}}_{CP\pm }$ and the ratios of the $B$-decay branching fraction in $CP\pm$ and non-$CP$ decays ${\mathcal{R}}_{CP\pm }$: ${\mathcal{A}}_{CP+}=-0.08\pm 0.19(\mathrm{stat})\pm 0.08(\mathrm{syst})$, ${\mathcal{A}}_{CP-}=-0.26\pm 0.40(\mathrm{stat})\pm 0.12(\mathrm{syst})$, ${\mathcal{R}}_{CP+}=1.96\pm 0.40(\mathrm{stat})\pm 0.11(\mathrm{syst})$, and ${\mathcal{R}}_{CP-}=0.65\pm 0.26(\mathrm{stat})\pm 0.08(\mathrm{syst})$.