d ′ dibaryon in the quark-delocalization, color-screening model

We study the questions of the existence and mass of the proposed d ′ (IJ P = 00 − ) dibaryon in the quark-delocalization, color-screening model (QDCSM). The transformation between physical and symmetry bases has been extended to the cases beyond the SU(2) orbital symmetry. Using parameters fixed by baryon properties and NN scattering, we find a mild attraction in the IJ P = 00 − channel, but it is not strong enough to form a deeply bound state as proposed �