  We describe a calculation of the spectrum of flavour-SU(3) octet and decuplet
baryons, their parity partners, and the radial excitations of these systems,
made using a symmetry-preserving treatment of a vector-vector contact
interaction as the foundation for the relevant few-body equations. Dynamical
chiral symmetry breaking generates nonpointlike diquarks within these baryons
and hence, using the contact interaction, flavour-antitriplet scalar,
pseudoscalar and vector, and flavour-sextet axial-vector quark-quark
correlations can all play an active role. The model yields reasonable masses
for all systems studied, and Faddeev amplitudes for ground states and
associated parity partners that sketch a realistic picture of their internal
structure: ground-state, even parity baryons are constituted, almost
exclusively, from like-parity diquark correlations; but orbital angular
momentum plays an important role in the rest-frame wave functions of odd-parity
baryons, whose Faddeev amplitudes are dominated by odd-parity diquarks.
