Competition between axial and non-axial octupole deformations in heavy nuclei

摘要

The macroscopic-microscopic method is applied to calculate the energies of heavy nuclei (A > 220) in a multidimensional deformation space {alpha(lambda,mu)} including axial and non-axial quadrupole (lambda = 2, mu = 0, 2), axial and non-axial octupole (lambda = 3, mu = 0, 2) and axial hexadecapole (lambda = 4, mu = 0) degrees of freedom. Shell and pairing corrections are calculated from the single-particle energies of the Woods-Saxon potential with the universal parameters and added to the macroscopic energy of the newest Lublin-Strasbourg Drop (LSD) model to obtain the total deformation energy. [References: 8]