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Rotation-vibration description and transitional nuclei

Journal Article · · Phys. Rev. C; (United States)
; ; ;
A three-band-mixing rotation-vibration description of Faessler et al., corrected to include anharmonicity of the classical beta and gamma vibrations of the nuclear core by assuming different mass parameters for the ground, beta, and gamma vibrational states, has been applied to the /sup 150,152,154/Sm, /sup 154/Gd, /sup 156/Dy, and /sup 194/Pt nuclei. A comparison of the present results with older three-band mixing calculations using three parameter and five parameter descriptions has been made. Contrary to the older predictions, an excellent reproduction of the observed energy levels below back bending is obtained for all three bands. The agreement between the theoretical and experimental B(E2) values and branching ratios improves remarkably, especially in /sup 150/Sm and /sup 194/Pt where the mass parameters for beta and gamma vibrations are nearly double their rotational counterparts. A discussion has been made.
Research Organization:
Department of Physics, S. V. College, Aligarh 202001, India
OSTI ID:
6235427
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 27:2; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651813* -- Nuclear Properties & Reactions
A=150-189
Theoretical-- Energy Levels & Transitions-- (-1987)
651913 -- Nuclear Properties & Reactions
A=190-219
Theoretical-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BRANCHING RATIO
DEFORMED NUCLEI
DYSPROSIUM 156
DYSPROSIUM ISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXCITED STATES
GADOLINIUM 154
GADOLINIUM ISOTOPES
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
NUCLEI
PLATINUM 194
PLATINUM ISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
ROTATIONAL STATES
SAMARIUM 150
SAMARIUM 152
SAMARIUM 154
SAMARIUM ISOTOPES
STABLE ISOTOPES
VIBRATIONAL STATES