Composite quarks and leptons generated by supersymmetric quantum chromodynamics with N'color' < N'flavor'

Quarks and leptons together with other exotic fermions are regarded as quasi Nambu-Goldstone fermions and chiral fermions generated by supersymmetric quantum chromodynamics (SQCD) with Ncolor(=N) < Nflavor(=M). A mass protection symmetry, H, contains a chiral SU(M - N) [or SU(M - N + 1)] symmetry as well as a chiral U(1) symmetry supported 'algebraically' by complementarity and 'dynamically' by effective superpotential. The successive SUSY-breaking is constrained by the remnant of the QCD dynamics, i.e., the complete breakdown of chiral symmetries in H. The large mass splitting between J = 1/2 and J = 0 is shown to arise and masses for light composite fermions are specified by the SUSY-breaking scale MSS and the confinement scale Λsc: MSS(MSS/Λsc)(M-N)/2k for MSS << Λsc, where 2k ≤ M - N is imposed by the consistency with the anomaly-matching. (author)