Neutron-rich Ca, Ni, Zr, and Sn isotopes described by the continuum Skyrme Hartree-Fock-Bogoliubov theory with Green's function method

The possible exotic nuclear properties in the neutron-rich Ca, Ni, Zr, and Sn isotopes are examined with the continuum Skyrme Hartree-Fock-Bogoliubov theory in the framework of the Green's function method. The Skyrme interaction SLy4 is adopted for the $ph$ channel and the density-dependent $\delta$ interaction is adopted for the $pp$ channel. Based on the continuum Skyrme HFB theory, the following data are given(1) The two-neutron separation energies $S_{\rm 2n}$ and one-neutron separation energies $S_{\rm n}$;(2) The neutron drip lines predicted by the critia of $S_{\rm 2n}>0$ and $S_{\rm n}>0$;(3) The neutron pairing energies $-E_{\rm pair}$;(4) The single-particle levels and occupations;(5) The root-mean-square (rms) radii and the density distributions as well as the contributions from different partial waves;(6) The number of neutrons $N_{\lambda}$~($N_0$) occupying above the Fermi surface $\lambda_n$~(continuum threshold).