On the stability of superheavy nuclei

Potential energy surfaces of even–even superheavy nuclei are evaluated within the macroscopic-microscopic approximation. A very rapidly converging analytical Fourier-type shape parametrization is used to describe nuclear shapes throughout periodic table, including those fissioning nuclei. The Lublin Strasbourg Drop and another effective liquid-drop type mass formula determine macroscopic part energy. Yukawa-folded single-particle potential, Strutinsky shell-correction method, BCS approximation for pairing correlations obtain microscopic corrections. binding energies, fission-barrier heights, $$Q_\alpha $$ energies show a relatively good agreement with experimental data. simple one-dimensional WKB model à la ?wia?tecki estimate spontaneous fission lifetimes, while $$\alpha decay probabilities obtained Gamow-type model.