Ckm Unitarity Angles Α ( Φ 2 ) and Γ ( Φ
نویسنده
چکیده
In the Standard Model, the origin of CP-violation lies in the charged weak interaction sector, which involves transitions amongst quarks of different flavor and charge through the emission of a virtual W . The coupling strengths of these transitions for the 3 generations of quarks form a 3×3 matrix first introduced by M. Kobayashi and T. Maskawa and known as the (CKM) matrix. The CKM matrix is a unitary matrix parameterized by 3 real angles and one complex phase. This single complex phase of the CKMmatrix is the source of CP-violation in the Standard Model (SM). A popular parametrization of the CKM matrix, by L. Wolfenstein, is given below, where the 4 parameters are A, λ, ρ and η:
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