CONSTRAINTS ON THE OMEGA-MESON AND SIGMA-MESON COUPLING-CONSTANTS WITH DIBARYONS

The effect of narrow dibaryon resonances on basic nuclear matter prope rties and on the structure of neutron stars is investigated in mean-fi eld theory and in relativistic Hartree approximation. The existence of massive neutron stars imposes constraints on the coupling constants o f the omega and sigma mesons with dibaryons. In the allowed region of the parameter space of the coupling constants, a Bose condensate of th e light dibaryon candidates d(1)(1920) and d'(2060) is stable against compression. This proves the stability of the ground state of heteroph ase nuclear matter with a Bose condensate of light dibaryons.