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We search for CP violation in a sample of $4.7\times10^4$ Cabibbo-suppressed$D^0 \to K^+ K^- \pi^+ \pi^-$ decays. We use 470{\rm fb}^{-1} of data recordedby the BaBar detector at the PEPII asymmetric-energy $e^+e^-$ storage ringsrunning at center-of-mass energies near 10.6 GeV. CP violation is searched forin the difference between the $T$-odd asymmetries, obtained using tripleproduct correlations, measured for $D^0$ and $\bar D^0$ decays. The measured CPviolation parameter is ${\cal A}_T = (1.0 \pm 5.1_{\sta}\pm 4.4_{\sys}) \times10^{-3}$.

Search for CP violation using $T$-odd correlations in $D^0 \to K^+ K^- \pi^+ \pi^-$ decays