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arXiv · hep-ph/9802361

Final State Interaction Phases in $ B \to K π$ Decay Amplitudes

D. Delepine·J. -M. Gerard·J. Pestieau·J. Weyers
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Abstract

A simple Regge pole model for $Kπ$ scattering explains the large $e^{i δ}$ between isospin amplitudes which is observed at the D meson mass ($δ\approx π/2$). It predicts $δ\approx 14^{\circ}- 20^{\circ}$ at the B mass. Implications for ($B \to K π$) decays and extensions of the model to other two-body decay channels are briefly discussed.

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D. Delepine, J. -M. Gerard, J. Pestieau, J. Weyers. 1998-02-19. Final State Interaction Phases in $ B \to K π$ Decay Amplitudes. https://doi.org/10.1016/s0370-2693(98)00472-9

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