Dalitz Analysis of the Decay $D^{0}\to K^{-}π^{+}π^{0}$

We use data collected with the CLEO II detector to perform a high-statistics measurement of the resonant substructure in $D^0 \to K^-π^+π^0$ decays. We find the Dalitz Plot is well represented by a combination of seven quasi-two-body decay channels ($\bar{K}^{*0} π^0$, $K^- ρ$, $K^{*-} π^+$, $K^*_0(1430)^-π^+$, $\bar{K}^*_0(1430)^0 π^0$, $K^- ρ^+(1700)$, and $K^*(1680)^- π^+$), plus a small non-resonant component. Using the amplitudes and phases from this analysis, we calculate an integrated CP asymmetry of $-0.031 \pm 0.086$.

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