Self-consistent model of vibrational--rotational quadrupole--octupole excitations of deformed nuclei

Journal Article · Tue Jul 01 00:00:00 EDT 1986 · Sov. J. Particles Nucl. (Engl. Transl.); (United States)

OSTI ID:6982451

Barts, B I; Inopin, E V; Shlyakhov, N A

For the unified description of collective states of both positive and negative parity a model is developed in which not only quadrupole but also octupole degrees of freedom are taken into account. The analysis is based on a self-consistent treatment of the interaction of the vibrational degrees of freedom through rotation of the nucleus. The model can be formulated in such a way that there is no expansion with respect to the ratio of the vibration amplitude to the static deformation, and therefore deformed as well as transitional nuclei, in which the static deformation may be small, can be studied in a unified manner. The moments of inertia and the vibrational rigidities are determined in a self-consistent manner and depend essentially on the angular momentum of the level. This has the consequence that with increasing angular momentum there is a rearrangement of the spectrum from a rotational to an equidistant spectrum. The possibility of an additional branch of the spectrum beginning at a certain value of the angular momentum is discussed. The corresponding collective states are treated as dynamical nonaxial isomers.

• Research Organization: Khar'kov Physicotechnical Institute, Khar'kov
• OSTI ID: 6982451
• Journal Information: Sov. J. Particles Nucl. (Engl. Transl.); (United States), Vol. 17:4
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEFORMED NUCLEI
COLLECTIVE EXCITATIONS
ROTATIONAL STATES
VIBRATIONAL STATES
COLLECTIVE MODEL
EXCITED STATES
OCTUPOLES
QUADRUPOLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
MATHEMATICAL MODELS
MULTIPOLES
NUCLEAR MODELS
NUCLEI
651000* - Nuclear Physics