Hierarchy and Up-Down Parallelism of Quark Mass Matrices
Abstract
In view of the quark mass hierarchy and in the assumption of the up-down parallelism, we derive two phenomenologically-favored patterns of Hermitian quark mass matrices from the quark flavor mixing matrix. We compare one of them with two existing Ansatze proposed by Rosner and Worah and by Roberts et al, and find that only the latter is consistent with the present experimental data.
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