ar X iv : h ep - p h / 04 10 38 1 v 2 4 Ja n 20 05 Unitarity violation of the CKM matrix in a nonuniversal gauge interaction model
نویسنده
چکیده
The Cabibbo-Kobayashi-Maskawa (CKM) matrix describes quark mixings for the charged current interaction. Each element of the CKM matrix is not determined theoretically but just parametrized by three angles and one phase due to the unitarity nature of the CKM matrix in the framework of the Standard Model (SM). The unitarity of the CKM matrix is a universal feature of the flavour physics and also holds in many new physics scenarios like the minimal supersymmetric standard model (MSSM) as well as in the SM. We parametrize the unitarity relation for the first row of the matrix as
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