Searching for possible largeCP-violation effects in neutral-charm-meson decays

Possible large CP-violation effects in the partial-decay-rate asymmetries for the $D^0$-D¯ ${}_{}{}^0{}_{}{}^{}$ system are discussed. All possible nonleptonic two-body final states are studied. It turns out that $D^0$→${\pi }^{\mathrm{-}}$ $K^{+}$, ${\pi }^0$ $K^0$, ${\pi }^0$η, ${\pi }^0$ω, $K^{+}$ $K^{\mathrm{-}}$, φ$K^0$ are the most promising channels. If the $D^0$-D¯ ${}_{}{}^0{}_{}{}^{}$ mixing is on ∼1% level, ${10}^4$–${10}^6$ $D^0$D¯ ${}_{}{}^0{}_{}{}^{}$ pairs would be enough for testing these channels.