Description of negative-parity states in /sup 158/Dy and /sup 168/Er in the framework of the random phase approximation based on the cranking model

Journal Article · Sun Sep 01 00:00:00 EDT 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6092142

Kvasil, J; Chariev, M M; Cwiok, S; Choriev, V; Mikhailov, I N

The random phase approximation based on the cranking model is used to study the characteristics of low-lying states with negative parity in /sup 158/Dy and /sup 168/Er. The connection of the ghost unphysical states of the nucleus (associated with the motion of the center of mass of the nucleus) with the solutions of the equations of motion in the framework of the random phase approximation is clarified. Calculated energy levels and probabilities of E1 transitions are compared with the experimental values. The dependence of the strength constants of the residual interactions and the effective mass of the nucleus on the angular momentum is studied. The model used gives a good qualitative reproduction of the experimental data on levels with negative parity up to about 2 MeV.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 6092142
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 42:3
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DYSPROSIUM 158
E1-TRANSITIONS
ENERGY LEVELS
ERBIUM 168
ANGULAR MOMENTUM
CRANKING MODEL
RANDOM PHASE APPROXIMATION
RESIDUAL INTERACTIONS
DYSPROSIUM ISOTOPES
ENERGY-LEVEL TRANSITIONS
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEI
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
STABLE ISOTOPES
651813* - Nuclear Properties & Reactions
A=150-189
Theoretical- Energy Levels & Transitions- (-1987)