Description of low-lying vibrational and two-quasiparticle states in [sup 166]Er

Journal Article · Tue Jan 31 23:00:00 EST 1995 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.51.551· OSTI ID:6643281

Soloviev, V G; Sushkov, A V; Shirikova, N Y ^[1]

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1. Joint Institute for Nuclear Research, Bogolubov Laboratory of Theoretical Physics, 141980 Dubna, Moscow region (Russian Federation)

The energies and wave functions of nonrotational states below 2.3 MeV in [sup 166]Er are calculated within the quasiparticle-phonon nuclear model. It is shown that the wave functions have a dominating one-phonon component. The contribution of the two-phonon configurations to the wave function of [ital K][sup [pi]][ne]0[sup +] and 4[sup +] states below 2.3 MeV is less than 6%. The existence of the double-[gamma] vibrational state with [ital K][sup [pi]]=4[sup +] at 2.0-2.2 MeV in [sup 166]Er is predicted. The calculated excitation energies and [ital B]([ital E]2) and [ital B]([ital E]3) values for transitions from the ground state are found to be in agreement with experimental data. Large spectroscopic factors of one-nucleon transfer reactions are explained by the large two-quasiparticle components of the one-phonon terms of the wave functions.

• OSTI ID: 6643281
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663120* -- Nuclear Structure Models & Methods-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DATA
DIRECT REACTIONS
E2-TRANSITIONS
E3-TRANSITIONS
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ERBIUM 166
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
EXCITED STATES
EXPERIMENTAL DATA
FUNCTIONS
GROUND STATES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ONE-NUCLEON TRANSFER REACTIONS
QUASIPARTICLE-PHONON MODEL
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTROSCOPIC FACTORS
STABLE ISOTOPES
TRANSFER REACTIONS
VIBRATIONAL STATES
WAVE FUNCTIONS