Applications Of Nilsson And Axial Relativistic Mean-field Plus Nearest-Orbit Pairing Interaction Model To Well-deformed Nuclei

Concent: An exactly solvable mean-filed plus nearest-orbit pairing model for the descrip-tion of well-deformed nuclei is used and applied to actinide and rare-earth regions. By usingNilsson and axial symmetric relativistic mean-field theory, binding energies, pairing excitationenergies, even-odd mass differences, and moment of inertia of ^226-234Th, ^230-239U, ^236-243Puisotopes and ^160-170Er, ^166-176Yb, ^172-180Hf isotopes are calculated in both proton-proton andneutron-neutron pairing and proton-proton pairing excitation frozen cases, and compared withthe corresponding experimental values. The empirical formulae of pairing strength parametersof the model in the actinide and rare-earth regions are obtained after fitting. As an approxima-tion, pairing interaction between protons and neutrons is not considered. It is inferred that themodel results of binding-energies, lower-lying pairing excitation energies and values of momentof inertia of rare-earth and actinide nuclei are basically close to the corresponding experimentalvalues when nearest orbit proton and neutron pairing interactions are assumed. Our work isessential to computation of other physical quantities in the model for well-deformed nuclei.