Quark Delocalization, Color Screening, and Nuclear Intermediate Range   Attraction
  We consider the effect of including quark delocalization and color screening, in the nonrelativistic quark cluster model, on baryon-baryon potentials and phase shifts. We find that the inclusion of these additional effects allows a good qualitative description of both. 
Fan Wang, Guang-han Wu, Li-jian Teng, and T. Goldman