We review and update the effects of physics beyond the standard model on CP asymmetries in B decays. These asymmetries can be significantly altered if there are important new-physics contributions to Bq⁰-Bq⁰ mixing. This same new physics will, therefore, also contribute to rare, flavor-changing B decays. Through a study of such decays, we show that it is possible to partially distinguish the different models of new physics.
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Gronau et al. (1997) studied this question.
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