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Direct CP violation in K->3pi decays induced by SUSY chromomagnetic penguins

G. D'Ambrosio·G. Isidori·G. Martinelli
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Abstract

An analysis of the CP violating asymmetry in $K^\pm \to (3π)^\pm$ decays in the Standard Model and, by means of the mass insertion approximation, in a wide class of possible supersymmetric extensions, is presented. We find that the natural order of magnitude for this asymmetry is $\cO(10^{-5})$ in both cases. Within supersymmetric models effects as large as $\cO(10^{-4})$ are possible, but only in a restricted range of the relevant parameters.

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G. D'Ambrosio, G. Isidori, G. Martinelli. 1999-11-29. Direct CP violation in K->3pi decays induced by SUSY chromomagnetic penguins. https://doi.org/10.1016/s0370-2693(00)00361-0

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