Shell model and mean-field description of band termination in the A{approx}44 nuclei

Journal Article · Tue May 15 00:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.054306· OSTI ID:20995268

Zalewski, M; Zdunczuk, H ^[1]; Satula, W ^[1]; Nazarewicz, W ^[1]; Stoitcheva, G ^[2]

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1. Institute of Theoretical Physics, University of Warsaw, ul. Hoza 69, 00-681 Warsaw (Poland)
2. Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, California 94551 (United States)

We study nuclear high-spin states undergoing the transition to the fully stretched configuration with maximum angular momentum I{sub max} within the space of valence nucleons. To this end, we perform a systematic theoretical analysis of non-fully-stretched I{sub max}-2 and I{sub max}-1 f{sub 7/2}{sup n} seniority isomers and d{sub 3/2}{sup -1}f{sub 7/2}{sup n+1} intruder states in the A{approx}44 nuclei from the lower-fp shell. We employ two theoretical approaches: (i) the density functional theory based on the cranked self-consistent Skyrme-Hartree-Fock method, and (ii) the nuclear shell model in the full sdfp configuration space allowing for 1p-1h cross-shell excitations. We emphasize the importance of restoration of broken angular momentum symmetry inherently obscuring the mean-field treatment of high-spin states. Overall good agreement with experimental data is obtained.

• OSTI ID: 20995268
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 5; Other Information: DOI: 10.1103/PhysRevC.75.054306; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
CONFIGURATION
CRANKING MODEL
DENSITY FUNCTIONAL METHOD
HARTREE-FOCK METHOD
HIGH SPIN STATES
ISOMERS
MASS NUMBER
MEAN-FIELD THEORY
NUCLEONS
SHELL MODELS
SKYRME POTENTIAL