Issue |
EPL
Volume 77, Number 6, March 2007
|
|
---|---|---|
Article Number | 62001 | |
Number of page(s) | 4 | |
Section | Nuclear Physics | |
DOI | https://doi.org/10.1209/0295-5075/77/62001 | |
Published online | 02 March 2007 |
Alpha-decay lifetimes semiempirical relationship including shell effects
1
Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH) - RO-077125 Bucharest-Magurele, Romania
2
Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG) - BP 120, F-33175 Gradignan Cedex, France
Received:
9
October
2006
Accepted:
5
February
2007
A new version of the semiempirical formula based on fission approach of alpha decay is derived, by using the optimum values of the fitting parameters determined for even-even nuclei, combined with hindrance factors for even-odd, odd-even, and odd-odd nuclides. The deviations from experimental data for two regions of nuclear chart (493 alpha emitters with and 142 transuranium nuclei including superheavies (
), respectively) are compared with those obtained by using the universal curve and the Viola-Seaborg semiempirical relationship.
PACS: 23.60.+e – α decay / 21.10.Tg – Lifetimes / 27.90.+b – Properties of specific nuclei listed by mass ranges:
© Europhysics Letters Association, 2007
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