高阶Wolfenstein参数化：似离散性及其解决
Wolfenstein Parametrization at Higher Order: Seeming Discrepancies and Their Resolution
摘要：
在Cabibbo-Kobayashi-Maskawa矩阵的不同精确参数化导出的不同Wolfenstein参数化中，我们明确地研究了在展开参数$λ$的高阶处矩阵元素之间的看似差异。一个系统的方法来解决表面上的差异提出。我们发现，大多数的差异可以自然地解决了一个适当的重新定义的数值小（顺序$λ$）参数。我们的方法被进一步应用到Wolfenstein-{ \it like}参数化的情况下，如Qin-Ma参数化。
英文摘要：
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 $λ$. 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 $λ$) 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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