A Sobiczewski and M Kowal 2006 Phys. Scr. 2006 68 doi:10.1088/0031-8949/2006/T125/015
A Sobiczewski and M Kowal
Show affiliationsRecent macroscopic–microscopic studies of the heights of (static) fission barriers Bfst of the heaviest nuclei are reviewed. The studies are motivated by the importance of this quantity in calculation of cross-sections for synthesis of these nuclei. Large deformation spaces, including as high multipolarities of deformation as λ=8, are used for the analysis of Bfst. The importance of non-axial shapes in this analysis is shown. They reduce Bfst by up to about 2 MeV. The origin of this large reduction is explained. This is a large (negative) shell correction to the energy, which overcomes a significant stiffness of the macroscopic part of this energy to non-axial deformations of a nucleus.
24.10.Pa Thermal and statistical models
Issue T125 (July 2006)
Received 18 July 2005, accepted for publication 1 September 2005
Published 28 June 2006
A Sobiczewski and M Kowal 2006 Phys. Scr. 2006 68
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