  Beyond the spontaneous chiral symmetry breaking scale light and strange
baryons should be considered as systems of three constituent quarks with an
effective confining interaction and a flavor-spin chiral interaction that is
mediated by the octet of Goldstone bosons (pseudoscalar mesons) between the
constituent quarks. One cannot exclude, however, the possibility that this
flavor-spin interaction has an appreciable vector- and higher meson exchange
component.
