Properties of super-heavy elements in Hartree-Fock-Bogolubov model with the Gogny force. M. Warda Katedra Fizyki Teoretycznej, Uniwersytet Marii Curie-Skłodowskiej,

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Presentation transcript:

Properties of super-heavy elements in Hartree-Fock-Bogolubov model with the Gogny force. M. Warda Katedra Fizyki Teoretycznej, Uniwersytet Marii Curie-Skłodowskiej, Lublin, Poland, J. Egido, L. Robledo Departamento de Física Teórica C-XI, Universidad Autónoma de Madrid, Madrid, Spain.

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Motivation Recent progress in synthesis of super-heavy elements (Dermstedt, Dubna, RIKEN) Good results of Hartree-Fock-Bogolubov theory with the Gogny force in trans-fermium nuclei D1S Gogny force Imposed axial symmetry Ground state properties (deformations, α decay) Fission barriers

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 2

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 2

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 3

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 4

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 6

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation parameter β 8

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Deformation energy

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Height of fission barriers

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Height of fission barriers

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Fission barriers of element 116 N=164N=184 N=190 N=174

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 QαQα

α decay half-lives

XII Nuclear Physics Workshop, Kazimierz Dolny 2005 Conclusions Properties of the super-heavy nuclei are well described by the Gogny force calculations. Results are in consistence with the other models and with available experimental data. The magic numbers are deduced at N=162 (deformed ground state) and at N=182 (spherical ground state). The isotones beyond N=184 have got octupole deformation. Following results of α decay and spontaneous fission barriers the super-heavy nuclei around N=180 have the highest half-lives. Triaxial deformations should be included.