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Alpha-particle formation and decay rates from Skyrme-HFB wave functions

Ward, Daniel LU ; Carlsson, Gillis LU and Åberg, Sven LU (2014) In Physica Scripta 89(5).
Abstract
alpha decay is treated microscopically, where the unstable mother nucleus and residual daughter nucleus are described using Hartree-Fock-Bogoliubov (HFB) wave functions, obtained with the Skyrme effective interaction. From these wave functions the amplitude for forming alpha particles in the mother nucleus is computed. Two different Skyrme parametrizations with different pairing properties are compared, and we find good agreement with experiment for relative decay rates in both cases. The absolute values of the decay rates are underestimated.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
alpha decay, alpha-particle formation, Hartree-Fock-Bogoliubov, Skyrme, interaction, reduced widths
in
Physica Scripta
volume
89
issue
5
publisher
Institute of Physics Publishing Ltd.
external identifiers
  • wos:000335785300027
  • scopus:84899742811
ISSN
0031-8949
DOI
10.1088/0031-8949/89/5/054027
language
English
LU publication?
yes
id
fc92fe59-9515-4c9e-a29a-33959d5da847 (old id 4470095)
date added to LUP
2014-06-19 10:56:11
date last changed
2017-01-02 10:56:10
@article{fc92fe59-9515-4c9e-a29a-33959d5da847,
  abstract     = {alpha decay is treated microscopically, where the unstable mother nucleus and residual daughter nucleus are described using Hartree-Fock-Bogoliubov (HFB) wave functions, obtained with the Skyrme effective interaction. From these wave functions the amplitude for forming alpha particles in the mother nucleus is computed. Two different Skyrme parametrizations with different pairing properties are compared, and we find good agreement with experiment for relative decay rates in both cases. The absolute values of the decay rates are underestimated.},
  articleno    = {054027},
  author       = {Ward, Daniel and Carlsson, Gillis and Åberg, Sven},
  issn         = {0031-8949},
  keyword      = {alpha decay,alpha-particle formation,Hartree-Fock-Bogoliubov,Skyrme,interaction,reduced widths},
  language     = {eng},
  number       = {5},
  publisher    = {Institute of Physics Publishing Ltd.},
  series       = {Physica Scripta},
  title        = {Alpha-particle formation and decay rates from Skyrme-HFB wave functions},
  url          = {http://dx.doi.org/10.1088/0031-8949/89/5/054027},
  volume       = {89},
  year         = {2014},
}