2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148981Quark models with four-fermion interaction including derivatives of fields are exploited as prototypes for composite-Higgs extensions of the Standard Model. In the non-trivial case of two- and four-derivative insertions the dynamical breaking of chiral symmetry occurs in two channels, giving rise to two composite Higgs doublets. For special configuration of four-fermion coupling constants the dynamical CP-violation in the Higgs sector appears as a result of complexity of two v.e.v. for Higgs doublets. In this scenario the second Higgs doublet is regarded as a radial excitation of the first one.7 pages of LaTeX text. Talk given at 28th International Conference on High Energy Physics, Warsaw, June 1996, and XI International Workshop on High Energy Physics and Quantum Field Theory, Sankt-Petersburg, September, 1996High Energy Physics - Phenomenologytext