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We extend the traditional formulation of Gauge Field Theory by incorporatingthe (non-Abelian) gauge group parameters (traditionally simple spectators) asnew dynamical (nonlinear-sigma-model-type) fields. These new fields interactwith the usual Yang-Mills fields through a generalized minimal couplingprescription, which resembles the so-called Stueckelberg transformation, butfor the non-Abelian case. Here we study the case of internal gauge symmetrygroups, in particular, unitary groups U(N). We show how to couple standardYang-Mills Theory to Nonlinear-Sigma Models on cosets of U(N): complexprojective, Grassman and flag manifolds. These different couplings lead todistinct (chiral) symmetry breaking patterns and \emph{Higgs-less}mass-generating mechanisms for Yang-Mills fields.

Coupling Nonlinear Sigma-Matter to Yang-Mills Fields: Symmetry Breaking Patterns