ISSN:
1434-601X
Keywords:
28.85.Ca
;
23.60.+e
;
27.90.+b
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The ground-state collective potential energy of even-even superheavy nuclei with the proton numberZ=112–130 and the neutron numberN=152–210 is analyzed in a multidimensional deformation space. The energy is calculated by the macroscopic-microscopic method. The Yukawa-plus-exponential model is used for the macroscopic part of the energy and the Strutinski shell correction, based on the Woods-Saxon single-particle potential, is taken as the microscopic part. Three axial-symmetric deformations:β 2,β 4,β 6, and quadrupole and hexadecapole non-axial deformations are taken into account. The spontaneous-fission and alpha-decay half-lives are also calculated. Rather low fission barriers (3–7 MeV lower than calculated previously) are obtained, especially when non-axial shapes of a nucleus are considered. Nevertheless, the calculated fission lifetimes are larger than the alpha-decay half-lives for most of considered nuclides. A large number of nuclides withZ=112–122 is predicted to have the total half-life long enough to be detected, when synthesized in the laboratory.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01288471
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