Shell Corrections Stabilizing Superheavy Nuclei and Semi-spheroidal Atomic Clusters
- Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), P O Box MG-6, RO 077125 Bucharest-Magurele (Romania)
The macroscopic-microscopic method is used to illustrate the shell effect stabilizing superheavy nuclei and to study the stability of semi-spheroidal clusters deposited on planar surfaces. The alpha decay of superheavy nuclei is calculated using three models: the analytical superasymmetric fission model; the universal curve, and the semiempirical formula taking into account the shell effects. Analytical relationships are obtained for the energy levels of the new semi-spheroidal harmonic oscillator (SSHO) single-particle model and for the surface and curvature energies of the semi-spheroidal clusters. The maximum degeneracy of the SSHO is reached at a super-deformed prolate shape for which the minimum of the liquid drop model energy is also attained.
- OSTI ID:
- 21052851
- Journal Information:
- AIP Conference Proceedings, Vol. 972, Issue 1; Conference: Carpathian summer school of physics 2007 on exotic nuclei and nuclear/particle astrophysics (II), Sinaia (Romania), 21-31 Aug 2007; Other Information: DOI: 10.1063/1.2870278; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Binding energies of even-even superheavy nuclei in a semi-microscopic approach
Nuclear lifetimes for cluster radioactivities