Enhanced estimates of charm rescattering in B0 to K0 with dipole interactions and form factor analysis.
We improve upon previous explicit estimates of charm rescattering contributions to the decay B⁰→ K⁰̄ by including contributions from dipole interactions with the intermediate charm-meson states, and by further investigating the structure of the electromagnetic form factors. Using a model of fundamental meson fields inspired by heavy-hadron chiral perturbation theory, augmented by form factors motivated by theoretical considerations as well as experimental data, we provide a thorough investigation of rescattering contributions induced by intermediate D(*)D(*)ₛ states.
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Isidori et al. (2025) studied this question.
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