  Inspired by the construction of the Gribov-Zwanziger action in the Landau
gauge, we introduce a quark model exhibiting both confinement and chiral
symmetry aspects. An important feature is the incorporation of spontaneous
chiral symmetry breaking in a renormalizable fashion. The quark propagator in
the condensed vacuum turns out to be of a confining type. Besides a real pole,
it exhibits complex conjugate poles. The resulting spectral form is explicitly
shown to violate positivity, indicative of its unphysical character. Moreover,
the ensuing quark mass function fits well to existing lattice data. To further
validate the physical nature of the model, we identify a massless pseudoscalar
(i.e. a pion) in the chiral limit and present estimates for the rho meson mass
and decay constant.
