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We construct a supersymmetric model for leptons and quarks with the flavorsymmetry Delta(384) and CP. The peculiar features of lepton and quark mixingare accomplished by the stepwise breaking of the flavor and CP symmetry. Thecorrect description of lepton mixing angles requires two steps of symmetrybreaking, where tri-bimaximal mixing arises after the first step. In the quarksector the Cabibbo angle theta_C equals sin pi/16 = 0.195 after the first stepof symmetry breaking and it is brought into full agreement with experimentaldata after the second step. The two remaining quark mixing angles are generatedafter the third step of symmetry breaking. All three leptonic CP phases arepredicted, sin delta^l = -0.936, |sin alpha|=|sin beta|=1/sqrt{2}. The amountof CP violation in the quark sector turns out to be maximal at the lowest orderand is correctly accounted for, when higher order effects are included. Chargedfermion masses are reproduced with the help of operators with different numbersof flavor (and CP) symmetry breaking fields. Light neutrino masses, arisingfrom the type-I seesaw mechanism, can accommodate both mass orderings, normaland inverted. The vacuum alignment of the flavor (and CP) symmetry breakingfields is discussed at leading and at higher order.

Lepton and Quark Masses and Mixing in a SUSY Model with Delta(384) and CP