Simple phenomenology for the ground-state bands of even-even nuclei
- Saha Institute of Nuclear Physics, Calcutta-700 064 (India)
It is observed that the even-even nuclei having identical [ital N][sub [ital p]][ital N][sub [ital n]]/[Delta] values exhibit identical excitation energies and/or energy ratios ([ital E][sub [ital J]]/[ital E][sub 2],[ital E][sub [ital J]]/[ital E][sub 4]) in their ground-state bands (g.s.b.). [ital N][sub [ital p]] ([ital N][sub [ital n]]) is the valence proton (neutron) number and [Delta] is the average pairing gap, ([Delta][sub [ital p]]+[Delta][sub [ital n]])/2. It is shown that this correlation is a manifestation of a very simple but uniform dependence of the excitation energies of the g.s.b. of even-even nuclei, spanning a wide mass region (70[le][ital A][le]244), on the ratio of their pairing and [ital n]-[ital p] interaction energies. An explicit form of this dependence is phenomenologically deduced and subsequently used to study the development of collectivity, existence of subshell closures and some other nuclear systematics.
- OSTI ID:
- 6849303
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Vol. 50:6; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EVEN-EVEN NUCLEI
GROUND STATES
COLLECTIVE EXCITATIONS
COLLECTIVE MODEL
CORRELATIONS
DEFORMED NUCLEI
PAIRING INTERACTIONS
PROTON-NEUTRON INTERACTIONS
BARYON-BARYON INTERACTIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HADRON-HADRON INTERACTIONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-NUCLEON INTERACTIONS
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)
663120 - Nuclear Structure Models & Methods- (1992-)