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Remarks on the fission barriers of super-heavy nuclei
- Source :
- The European Physical Journal A. 52
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- Shell-correction energies of super-heavy nuclei are approximated by using $ Q_{\alpha}$ values of measured decay chains. Five decay chains were analyzed, which start at the isotopes 285Fl, 294118, 291Lv, 292Lv and 293Lv. The data are compared with predictions of macroscopic-microscopic models. Fission barriers are estimated that can be used to eliminate uncertainties in partial fission half-lives and in calculations of evaporation-residue cross-sections. In that calculations, fission probability of the compound nucleus is a major factor contributing to the total cross-section. The data also provide constraints on the cross-sections of capture and quasi-fission in the entrance channel of the fusion reaction. Arguments are presented that fusion reactions for synthesis of isotopes of elements 118 and 120 may have higher cross-sections than assumed so far.
- Subjects :
- Physics
Nuclear and High Energy Physics
Isotope
010308 nuclear & particles physics
Fission
Nuclear Theory
Hadron
01 natural sciences
Entrance channel
Nuclear physics
medicine.anatomical_structure
0103 physical sciences
medicine
Nuclear fusion
Decay chain
Atomic physics
Nuclear Experiment
010306 general physics
Nucleus
Subjects
Details
- ISSN :
- 1434601X and 14346001
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- The European Physical Journal A
- Accession number :
- edsair.doi...........3b5e943d8f7c0c3148bbbb4c278b6601