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Studies of CP violation in B->J/psi K* decays

R. Itoh·Y. Onuki
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Abstract

CP violation in $B\to J/ψK^*$ decays is studied using an angular analysis in a data sample of 253 fb$^{-1}$ recorded with the Belle detector at the KEKB $e^+e^-$ collider. The flavor separated measurements of the decay amplitudes indicate no evidence for direct CP violation. T-odd CP violation is studied using the asymmetries in triple product correlations, and the results are consistent with the Standard Model null predictions. The time-dependent angular analysis gives the following values of CP violating parameters: $\sin 2ϕ_1 = 0.24 \pm 0.31 \pm 0.05$ and $\cos 2ϕ_1 = 0.56 \pm 0.79 \pm 0.11$.

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R. Itoh, Y. Onuki. 2005-07-13. Studies of CP violation in B->J/psi K* decays. https://doi.org/10.1103/physrevlett.95.091601

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