期刊
PHYSICAL REVIEW C
卷 91, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.91.034301
关键词
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资金
- COPIN-IN2P3 Polish-French Collaboration [05-119]
- LEA COPIGAL project Search for the High-rank Symmetries in Subatomic Physics
- Polish Ministry of Science and Higher Education [2011/03/B/ST2/01894]
We present a theoretical analysis of the competition between the so-called nuclear Jacobi and Poincare shape transitions as a function of spin at high temperatures. The latter condition implies the method of choice, a realistic version of the nuclear liquid drop model, here the Lublin-Strasbourg drop model. We address specifically the fact that the Jacobi and Poincare shape transitions are accompanied by the flattening of the total nuclear energy landscape as a function of the relevant deformation parameters, which enforces large-amplitude oscillation modes that need to be taken into account. For that purpose we introduce an approximate form of the collective Schrodinger equation whose solutions are used to calculate the most probable deformations associated with the nuclear Jacobi and Poincare transitions. We discuss selected aspects of the new description focusing on the critical-spin values for both types of these transitions.
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