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arXiv · 1003.3397

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

The BABAR Collaboration·P. del Amo Sanchez
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Abstract

We search for CP violation in a sample of $4.7\times10^4$ Cabibbo-suppressed $D^0 \to K^+ K^- π^+ π^-$ decays. We use 470{\rm fb}^{-1} of data recorded by the BaBar detector at the PEPII asymmetric-energy $e^+e^-$ storage rings running at center-of-mass energies near 10.6 GeV. CP violation is searched for in the difference between the $T$-odd asymmetries, obtained using triple product correlations, measured for $D^0$ and $\bar D^0$ decays. The measured CP violation parameter is ${\cal A}_T = (1.0 \pm 5.1_{\sta}\pm 4.4_{\sys}) \times 10^{-3}$.

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The BABAR Collaboration, P. del Amo Sanchez. 2010-08-12. Search for CP violation using $T$-odd correlations in $D^0 \to K^+ K^- π^+ π^-$ decays. https://doi.org/10.1103/physrevd.81.111103

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