4 articles
Cabibbo angle
The Cabibbo angle (θC) is the quark mixing angle Nicola Cabibbo introduced in 1963 to explain suppressed strangeness-changing weak decays, now the leading parameter of the CKM matrix.
Cabibbo–Kobayashi–Maskawa matrix
The Cabibbo–Kobayashi–Maskawa matrix, or CKM matrix, is the quark mixing matrix of the Standard Model, governing how W bosons change one quark flavor into another.
Jarlskog invariant
The Jarlskog invariant is a quantity in particle physics measuring CP violation in the Standard Model, independent of the parametrization of quark mixing, introduced by Cecilia Jarlskog in 1985.
Unitarity triangle
The unitarity triangle is a triangle in the complex plane representing a CKM matrix relation, used to test quark mixing and CP violation in the Standard Model.