Stable diquark matter ?
  Two-quark correlations ({\it diquarks}) may play an important role in hadronic physics, particularly near the deconfinement point. This opens the possibility of a net energy gain by means of a (non-perturbative) quark pairing effect, perheps up to stabilize diquark droplets. We address in this work the possibility of a self-bound, stable state of bulk diquark matter. 
J.E.Horvath