Anomalies in the rotational spectra of deformed nuclei

Journal Article · Sun Feb 01 04:00:00 EST 1981 · Sov. Phys. - Usp. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/PU1981v024n02ABEH004622· OSTI ID:5950849

Pavlichenkov, I M

A review is given of the phenomenon of backbending which is observed in the rotational spectra of deformed nuclei. The phenomenon is interpreted in terms of superconducting-type pairing correlations. This model was previously successful in the description of the low-lying rotational states. Analysis of high-spin rotational states in the backbending region has established a similarity between pairing correlations in nuclei and in superconductors of small linear dimensions. In view of this, low-lying quasiparticle terms of the subshell with high angular momentum j on the Fermi surface assume particular importance (through the dependence of quasiparticle energy on the nuclear rotational frequency). The importance of quasiparticle terms in the analysis of the structure of deformed nuclei is noted. The review covers the period up to the beginning of 1980.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy, Academy of Sciences of the USSR, Moscow
• OSTI ID: 5950849
• Journal Information: Sov. Phys. - Usp. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Usp. (Engl. Transl.); (United States) Vol. 24:2; ISSN SOPUA
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BACKBENDING
DEFORMED NUCLEI
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
EXCITED STATES
HIGH SPIN STATES
INTERACTIONS
NUCLEI
PAIRING INTERACTIONS
PHYSICAL PROPERTIES
QUASI PARTICLES
REVIEWS
ROTATIONAL STATES
SUPERCONDUCTIVITY