engleski

3D relativistic Hartree-Bogoliubov model with a separable pairing interaction: Triaxial ground-state shapes

Potential-energy surfaces and pairing energy maps of nuclei with triaxial shapes are studied in the framework of the relativistic Hartree-Bogoliubov (RHB) model. The recently introduced separable pairing force, adjusted in nuclear matter to the pairing gap of the Gogny force, is employed in the pairing channel of the three-dimensional RHB model for triaxial shapes, and the density-dependent meson-exchange effective interaction (DD- ME2) is used in the particle-hole channel. Even-A Pt isotopes with triaxial ground-state shapes and Sm nuclei with γ-soft potential-energy surfaces are analyzed.

PACS: 21.60.Jz; 21.30.Fe; 21.10.Re; 21.10.Ky

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