Hexadecapole states in deformed nuclei
In the framework of the quasiparticle-phonon model we have calculated energies and wave functions of low-lying nonrotational hexadecapole states with K/sup ..pi../ = 4/sup +/ and 3/sup +/ in deformed even-even nuclei in the region 158less than or equal toAless than or equal to188. The calculations were carried out with fixed values of the hexadecapole force constants kappa-cur/sup (44)//sub 0/ and kappa-cur/sup (43)//sub 0/. We have shown that in the isotopes of Gd and Dy at energies below 2 MeV there are K/sup ..pi../ = 4/sup +/ states with dominant two-quasiparticle components. In the isotopes of Er, Yb, and Hf there should be collective K/sup ..pi../ = 3/sup +/ states with energies 1.2--1.6 MeV. In the isotopes of Os there are collective K/sup ..pi../ = 4/sup +/ states at energies 1.0--1.4 MeV. The calculated characteristics of K/sup ..pi../ = 4/sup +/ and 3/sup +/ states agree qualitatively with the existing experimental data. We have studied the influence of hexadecapole forces on the first K/sup ..pi../ = 2/sup +/ states and have shown that for certain values of the constant kappa-cur/sup (44)//sub 0/ it can be appreciable.
- Research Organization:
- Joint Institute for Nuclear Research
- OSTI ID:
- 6599682
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 44:6; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Moments
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEFORMED NUCLEI
DYSPROSIUM ISOTOPES
ENERGY LEVELS
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
FUNCTIONS
GADOLINIUM ISOTOPES
HAFNIUM ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEI
QUASIPARTICLE-PHONON MODEL
RARE EARTH ISOTOPES
WAVE FUNCTIONS
YTTERBIUM ISOTOPES