  We report results from a study of heavy-baryon spectroscopy within a
relativistic constituent- quark model, whose hyperfine interaction is based on
Goldstone-boson-exchange dynamics. While for light-flavor constituent quarks it
is now commonly accepted that the effective quark-quark interaction is
(predominantly) furnished by Goldstone-boson exchange - due to spontaneous
chiral-symmetry breaking of quantum chromodynamics at low energies - there is
currently still much speculation about the light-heavy and heavy-heavy
quark-quark interactions. With the increasing amount of experimental data on
heavy-baryon spectroscopy these issues might soon be settled. Here, we show,
how the relativistic constituent-quark model with Goldstone-boson-exchange
hyperfine interactions can be extended to charm and bottom baryons. It is found
that the same model that has previously been successful in reproducing the
light and strange baryon spectra is also in line with the existing
phenomenological data on heavy-baryon spectroscopy. An analogous model with
one-gluon-exchange hyperfine interactions for light-heavy flavors does not
achieve a similarly good performance.
