Acta Physica Polonica B

Vol. 34, No. 3, March 2003, page 1801


Spontaneous Fission and \alpha -decay Half-Lives of Superheavy Nuclei in Different Macroscopic Energy Models

Z. Lojewski, A. Baran, K. Pomorski

Spontaneous fission half-lives (Tsf) of the heaviest nuclei are calculated in the macroscopic-microscopic approach based on the deformed Woods-Saxon potential. Four different models of the macroscopic energy are examined and their influence on the results is discussed. The calculations of (Tsf) are performed within WKB approximation. Multi-dimensional dynamical-programming method (MDP) is applied to minimize the action integral in a 3-dimensional space of deformation parameters describing the nuclear shape {\beta 2, \beta 4, \beta 6}.

PACS numbers: 25.85.Ca, 21.60.Ev, 21.10.Tg


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