Shell structure in neutron-rich Ca and Ni nuclei under semi-realistic mean fields

Journal Article · Sat May 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.051302· OSTI ID:21388998

Nakada, H ^[1]

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1. Department of Physics, Graduate School of Science, Chiba University Yayoi-cho 1-33, Inage, Chiba 263-8522 (Japan)

Shell structure in the neutron-rich Ca and Ni nuclei is investigated by the spherical Hartree-Fock calculations with semi-realistic NN interactions. Specific ingredients of the effective interaction, particularly the tensor force, often play a key role in the Z dependence of the neutron shell structure. Such examples are found in N=32 and N=40; N=32 becomes magic or submagic in {sup 52}Ca while its magicity is broken in {sup 60}Ni, and N=40 is submagic (though not magic) in {sup 68}Ni but not in {sup 60}Ca. Comments are given on the doubly magic nature of {sup 78}Ni. We point out that the loose binding can lead to a submagic number N=58 in {sup 86}Ni, assisted by the weak pair coupling.

• OSTI ID: 21388998
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
APPROXIMATIONS
BARYON-BARYON INTERACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM 52
CALCIUM 60
CALCIUM ISOTOPES
CALCULATION METHODS
CONFIGURATION
COUPLING
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HARTREE-FOCK METHOD
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAGIC NUCLEI
MEAN-FIELD THEORY
NEUTRON-RICH ISOTOPES
NEUTRONS
NICKEL 60
NICKEL 68
NICKEL 78
NICKEL ISOTOPES
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPHERICAL CONFIGURATION
STABLE ISOTOPES
TENSOR FORCES