SU(4) Preonic Interpretation of the HERA Positron-Jet Events

We show that our recent SU(4) generalized rishon'' composite model for quarks and leptons, augmented either by the hypothesis of breaking of color SU(3) to glow’’ SO(3), or by the hypothesis of incomplete color neutralization in very hard processes, leads to an interpretation of the HERA positron-jet events as the production by color gluon exchange, followed by the decay by color gluon emission, of the positron member of a heavy family partner of the positron.