Abstract
The decays of heavy-quarkantiquark bound states into final states involving colored massive axial-vector, scalar, and pseudoscalar bosons predicted by chiral color theories are considered. It is shown that the presence of such light axiparticles may have many important consequences for quarkonium phenomenology. The case of toponium is treated in some detail, where it is shown that, if sufficiently light axicolor particles exist many decay channels could be experimentally accessible either at CERN LEP for the vector toponium states or at the Superconducting Super Collider for the pseudoscalar states.