Landscape appreciation of systematic structure properties in even-even nuclei along the valley of stability 后印本

摘要: Structural properties of even-even nuclei along the β-stability line are systematically analyzed and
investigated by means of our improved potential-energy-surface (PES) approach. The equilibrium
deformations obtained from the PES minima are compared with available experimental data and
other theoretical results. From a brand-new angle of view, taking the nuclei on the stability line
as footholds, we systematically present two-nucleon separation energies and half lives in the corre-
sponding isotopic chains. Very regular laws can be seen, especially below Z = 84. The observed
trends and anomalous behaviors are briefly discussed. The energy difference between theory and
experiment for the binding energies and two-nucleon separation energies indicates that the improved
PES calculations with our fitting macroscopic model parameters are relatively in better agreement
with experiments. Based on the systematic law of two-nucleon separation energies, the bound limit
of even-even nuclei is crudely estimated along the stability line.