Studying High Energy Final State Interactions by N/D Method
classification
✦ hep-ph
keywords
finalstateeffectshighinteractionsmethodamplitudescharge--exchange
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We discuss the final state interaction effects at high energies via a multi-channel N/D method. We find that the 2 by 2 charge--exchange final state interactions typically contribute an enhancement factor of a few times $10^{-2}$ in the $B$ meson decay amplitudes, both for the real and the imaginary part. We also make some discussions on the elastic rescattering effects.
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