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Final state interactions and CP violation in B decays to three pseudoscalars

Abstract : We study CP violation and final state interactions between pions and kaons in B+, B-, B0 and bar B0 decays into K pi pi. The weak transition amplitudes consist of two terms: the first part is derived in QCD factorization approach and the second one is a phenomenological long-distance charming penguin contribution. The final state K pi interactions in S- and P-waves are described by strange scalar and vector form factors, respectively. These are determined using a unitary coupled channel model together with chiral symmetry and asymptotic QCD constraints. The final state interactions are dominated by presence of the scalar K*0(1430) and the vector K*(892) resonances. We show that additional charming penguin amplitudes are needed to reproduce the latest experimental K pi effective mass and helicity angle distributions, branching fractions and asymmetries obtained by Belle and BaBar collaborations.
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Submitted on : Thursday, February 11, 2010 - 2:05:21 PM
Last modification on : Friday, April 16, 2021 - 8:05:11 AM

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R. Kaminski, B. El Bennich, A. Furman, L. Lesniak, B. Loiseau, et al.. Final state interactions and CP violation in B decays to three pseudoscalars. AIP Conference Proceedings, American Institute of Physics, 2010, 1257, pp.355. ⟨10.1063/1.3483349⟩. ⟨in2p3-00455961⟩

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