On the generality of certain predictions for quark mixing

The relations ${ {|V_{ub}|} \over {|V_{cb}|} } = \sqrt{ { m_u \over m_c } }$ and ${ {|V_{td}|} \over {|V_{ts}|} } = \sqrt{ { m_d \over m_s } }$ are significant successes of some specific models for quark masses. We show that these relations are more general, resulting from a much wider class of models. Consequences of these predictions for CP violating asymmetries in neutral B meson decays are discussed.

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