Rephasing Invariance and Hierarchy of the CKM Matrix
T. K. Kuo, Lu-Xin Liu
Abstract
We identified a set of four rephasing invariant parameters of the CKM matrix. They are found to exhibit hierarchies in powers of λ2, from λ2 to λ8. It is shown that, at the present level of accuracy, only the first three parameters are needed to fit all available data on flavor physics.
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