Zza. Aydin et al., CKM MIXINGS IN AN E(6)-INDUCED STANDARD MODEL EXTENSION AND IN THE MINIMAL SUPERSYMMETRIC STANDARD MODEL, Physical review. D. Particles and fields, 50(7), 1994, pp. 4711-4712
The number of mixing angles and phases in the two popular extensions o
f the standard model (SM), the E6-induced SM extension and the minimal
supersymmetric standard model with soft symmetry-breaking terms, is d
iscussed. It is found that two CP-violating phases appear in the minim
al supersymmetric SM even for the simplest case of one family.