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Preliminary study of additional effects with bearing on the barrier heights for superheavy elements

Larsson, S. E. LU ; Leander, G. ; Ragnarsson, I. LU and Randrup, J. LU (1974) In Physica Scripta 10(A). p.65-70
Abstract

The effects of the simultaneous presence of monopole and quadrupole pairing interactions on the fission barriers for heavy and superheavy elements are considered. The first barrier for light Thisotopes is found to be raised by 1 MeV, while heavier actinide nuclei seem to be less affected by the inclusion of quadrupole pairing. For the superheavy elements, the inclusion of quadrupole pairing tends to increase the barriers considerably. Moreover, the Coulomb energy, associated with the non-homogeneous charge distribution of the modified oscillator model, is compared with the liquid-drop valueand with value emerging from a self-consistent calculation based on the Skyrme interaction. The shelleffect, which may be several MeV in magnitude,... (More)

The effects of the simultaneous presence of monopole and quadrupole pairing interactions on the fission barriers for heavy and superheavy elements are considered. The first barrier for light Thisotopes is found to be raised by 1 MeV, while heavier actinide nuclei seem to be less affected by the inclusion of quadrupole pairing. For the superheavy elements, the inclusion of quadrupole pairing tends to increase the barriers considerably. Moreover, the Coulomb energy, associated with the non-homogeneous charge distribution of the modified oscillator model, is compared with the liquid-drop valueand with value emerging from a self-consistent calculation based on the Skyrme interaction. The shelleffect, which may be several MeV in magnitude, appears to be highly sensitive to model assumptionsconcerning the forces between neutrons and protons.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physica Scripta
volume
10
issue
A
pages
6 pages
publisher
IOP Publishing
external identifiers
  • scopus:84911561127
ISSN
0031-8949
DOI
10.1088/0031-8949/10/A/010
language
English
LU publication?
yes
id
a4c1c850-814e-4070-b57d-4646b1e2ff9e
date added to LUP
2026-01-15 09:53:07
date last changed
2026-01-19 11:20:30
@article{a4c1c850-814e-4070-b57d-4646b1e2ff9e,
  abstract     = {{<p>The effects of the simultaneous presence of monopole and quadrupole pairing interactions on the fission barriers for heavy and superheavy elements are considered. The first barrier for light Thisotopes is found to be raised by 1 MeV, while heavier actinide nuclei seem to be less affected by the inclusion of quadrupole pairing. For the superheavy elements, the inclusion of quadrupole pairing tends to increase the barriers considerably. Moreover, the Coulomb energy, associated with the non-homogeneous charge distribution of the modified oscillator model, is compared with the liquid-drop valueand with value emerging from a self-consistent calculation based on the Skyrme interaction. The shelleffect, which may be several MeV in magnitude, appears to be highly sensitive to model assumptionsconcerning the forces between neutrons and protons.</p>}},
  author       = {{Larsson, S. E. and Leander, G. and Ragnarsson, I. and Randrup, J.}},
  issn         = {{0031-8949}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{A}},
  pages        = {{65--70}},
  publisher    = {{IOP Publishing}},
  series       = {{Physica Scripta}},
  title        = {{Preliminary study of additional effects with bearing on the barrier heights for superheavy elements}},
  url          = {{http://dx.doi.org/10.1088/0031-8949/10/A/010}},
  doi          = {{10.1088/0031-8949/10/A/010}},
  volume       = {{10}},
  year         = {{1974}},
}