期刊
PHYSICAL REVIEW C
卷 85, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.85.061302
关键词
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资金
- Narodowe Centrum Nauki [2011/01/B/ST2/05131]
- LEA COPIGAL
We study the existence of third, hyperdeformed minima in a number of even-even Th, U, and Pu nuclei using the Woods-Saxon microscopic-macroscopic model that very well reproduces first and second minima and fission barriers in actinides. Deep (3-4 MeV) minima found previously by Cwiok et al. are found spurious after sufficiently general shapes are included. Shallow third wells may exist in Th-230,Th-232, with IIIrd barriers <= 200 and 330 keV (respectively). Thus, a problem of qualitative discrepancy between microscopic-macroscopic and self-consistent predictions is resolved. Now, an understanding of experimental results on the apparent third minima in uranium becomes an issue.
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