Wolfenstein Parametrization at Higher Order: Seeming Discrepancies and Their Resolution

Details Wolfenstein Parametrization at Higher Order: Seeming Discrepancies and Their Resolution Wolfenstein Parametrization at Higher Order: Seeming Discrepancies and Their Resolution

2011-06-05

arxiv.org/abs/1106.0935v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, two paragraphs added to explain the motivation for considering various Wolfenstein-like parametrizations; version to

Scientific paper

In different Wolfenstein parametrizations derived from different exact parametrizations of the Cabibbo-Kobayashi-Maskawa matrix, we explicitly study seeming discrepancies between the matrix elements at the higher order of the expansion parameter $\lambda$. A systematic way of resolving the seeming discrepancies is proposed. We find that most of the discrepancies can be naturally resolved by a proper redefinition of the numerically small (of order $\lambda$) parameters. Our approach is further applied to the cases for the Wolfenstein-{\it like} parametrizations, such as the Qin-Ma parametrization.

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