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arXiv · 0710.2469

CP violation and final state interactions in B --> K pi pi decays

L. Lesniak·B. El-Bennich·A. Furman·R. Kaminski·B. Loiseau·B. Moussallam
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Abstract

Effects of CP violation and of final state interactions between pairs of pseudoscalar mesons are studied in three-body B+, B-, B0 and antiB0 decays into K pi pi. An alternative approach to the isobar model for three-body B decays is proposed. It is based on the QCD factorization approximation and the knowledge of the meson-meson form factors. Some phenomenological charming penguin amplitudes are needed to describe the branching fractions, direct CP asymmetries of the quasi-two-body B --> K*(892) pi and B --> K0*(1430) pi decays as well as the K pi effective mass and the helicity angle distributions. The experimental branching fractions for the B --> K0*(1430) pi decay, obtained by the Belle and BaBar collaborations using the isobar model, are larger than our predictions by about 52 per cent.

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L. Lesniak, B. El-Bennich, A. Furman, R. Kaminski, B. Loiseau, B. Moussallam. 2007-10-12. CP violation and final state interactions in B --> K pi pi decays. https://doi.org/10.1088/1742-6596/110/5/052031

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