Hartree-Fock-Bogoliubov mass formulas and the equation of state of neutron-star matter Original Research Article

We have modified our best previous HFB mass model, HFB-8, to conform with the Friedman-Pandharipande calculation of neutron matter, achieving this simply by requiring that it be consistent with a nuclear-matter symmetry coefficient of J = 30 MeV. The rms deviation of the data fit rises from 0.635 to 0.748 MeV, but there is no essential change in the extrapolated neutron-separation and beta-decay energies of neutron-rich nuclei, the mass-related quantities that are relevant for the r-process. However, some significant changes arise in neutron-star calculations.