  We study the phase diagram of a generalized chiral SU(3)-flavor model in
mean-field approximation. In particular, the influence of the baryon
resonances, and their couplings to the scalar and vector fields, on the
characteristics of the chiral phase transition as a function of temperature and
baryon-chemical potential is investigated. Present and future finite-density
lattice calculations might constrain the couplings of the fields to the
baryons. The results are compared to recent lattice QCD calculations and it is
shown that it is non-trivial to obtain, simultaneously, stable cold nuclear
matter.
