Global calculations of microscopic energies and nuclear deformations: Isospin dependence of the spin-orbit coupling

摘要: Background: The deviation between different model calculations that may occur when one goes toward regions where the masses are unknown is getting increased attention. This related to uncertainties of models which have not been fully understood.Purpose: To explore in detail effect isospin dependence spin-orbital force Woods-Saxon potential on global binding energy and deformation calculations.Method: microscopic energies nuclear deformations about 1850 even-even nuclei calculated systematically within macroscopic-microscopic framework using three parametrizations, with dependencies, were constructed mainly for spectroscopy calculations. Calculations performed space $({\ensuremath{\beta}}_{2},\ensuremath{\gamma},{\ensuremath{\beta}}_{4})$. Both monopole doubly stretched quadrupole interactions considered pairing channel.Results: ground-state obtained by quite similar each other. Large differences seen neutron-rich superheavy nuclei. Systematic shape-coexisting second minima also presented. As ground states, results very close Only a few cases difference larger than 2 MeV. total estimated adding macroscopic provided usual liquid drop its parameters fitted through least square root minimax criteria. compared other mass models.Conclusions: All give values deformations, energies, most One expect better understanding more data proton-