Description of ground-state band energies in well-deformed even-even nuclei with the confined {beta}-soft rotor model
- Department of Physics and Astronomy, State University of New York, Stony Brook, New York 11794-3800 (United States)
The analytical solution of the confined {beta}-soft (CBS) rotor model is systematically compared to the energies of the ground-state rotational bands of strongly deformed heavy even-even nuclei. The model reproduces with one structural parameter the yrast band energies for all sufficiently well known rare-earth nuclei and actinides with a structural signature of R{sub 4/2}=E(4{sub 1}{sup +})/E(2{sub 1}{sup +})>3.30 up to the 12{sup +} state with an accuracy of the order of 10{sup -3}. This systematic study of the CBS model demonstrates the regularity of the ground-state bands without exception. Comparison to the Davydov Chaban model suggests that the agreement between data and collective models with soft potentials is insensitive to the details of the potential.
- OSTI ID:
- 20698803
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevC.72.011303; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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ACTINIDES
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COLLECTIVE MODEL
COMPARATIVE EVALUATIONS
DEFORMED NUCLEI
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GROUND STATES
HIGH SPIN STATES
NUCLEAR POTENTIAL
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PARTICLE-CORE COUPLING MODEL
RARE EARTH NUCLEI
ROTATIONAL STATES
SPIN
YRAST STATES