Comparison of the interacting-boson model and the quasiparticle-phonon model of the nucleus

Journal Article · Sun Jan 31 23:00:00 EST 1988 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6967639

Solov'ev, V G

The basic ideas of the quasiparticle-phonon model of the nucleus and the interacting-boson model are compared. In order to obtain a unified description of collective states with positive and negative parity it is necessary to develop a variant of the interacting-boson model with s, p, d, f, and g bosons. It is shown that there are fundamental differences in the basic ideas of the models and in their description of the states of even-even deformed nuclei with K/sup ..pi..//sub n/ = 0/sup -//sub 2/, 0/sup +- //sub 3/, 0/sup +- //sub 4/, 1/sup +- //sub 2/, 2/sup +- //sub 2/, 2/sup +- //sub 3/, 2/sup +- //sub 4/, 3/sup +- //sub 2/, 3/sup +- //sub 3/, 4/sup +//sub 1/, and 4/sup +//sub 2/. A critique is given of the description of giant resonances in the interacting-boson model. New, more accurate experimental data on the structure of the states of deformed nuclei with excitation energies 1.5--2.5 MeV are needed.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 6967639
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 47:2; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE EXCITATIONS
COMPARATIVE EVALUATIONS
DEFORMATION
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
GIANT RESONANCE
INTERACTING BOSON MODEL
MATHEMATICAL MODELS
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEI
QUASIPARTICLE-PHONON MODEL
RESONANCE
SHELL MODELS