Systematical law of spontaneous fission half-lives of heavy nuclei
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, Nanjing University, Nanjing 210008 (China)
Systematic calculations on spontaneous fission half-lives of heavy nuclei are carried out by Swiatecki's formula with new parameters and by its generalized form. A new formula with only four parameters is also proposed for spontaneous fission half-lives. Experimental half-lives are well reproduced by the three formulas. We have found from systematic analysis of available data that there is a long lifetime line of spontaneous fission N=Z+52 for heavy elements with Z{>=}90. The new formula can be used to predict the spontaneous fission half-lives of heavy nuclei not far away from this long lifetime line. The small deviation between experimental half-lives and theoretical ones from the new formula is analyzed and discussed.
- OSTI ID:
- 20695872
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 71; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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