Special features of single-particle proton spectra of nickel, zinc, and germanium isotopes in the vicinity of the proton drip line

The single-particle proton spectra of the neutron-deficient isotopes 50,52 Ni, 56,58,60,62 Zn, and 60,62,64 Ge were calculated on the basis of the dispersive optical model whose parameters were extrapolated from the region of stable isotopes. The resulting parameter values lead to agreement between...

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Bibliographic Details
Published in:Physics of atomic nuclei 2015-10, Vol.78 (7), p.873-880
Main Authors: Bespalova, O. V., Ermakova, T. A., Klimochkina, A. A., Romanovsky, E. A., Spasskaya, T. I.
Format: Article
Language:English
Subjects:
Analysis
BOUND STATE
Evaluation
GERMANIUM 60
GERMANIUM 62
GERMANIUM 64
Nickel
NICKEL 50
NICKEL 52
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR STRUCTURE
Nuclei
OPTICAL MODELS
Particle and Nuclear Physics
Physics
Physics and Astronomy
PROTON SPECTRA
PROTONS
SINGLE-PARTICLE MODEL
ZINC 56
ZINC 58
ZINC 60
ZINC 62
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Summary:The single-particle proton spectra of the neutron-deficient isotopes 50,52 Ni, 56,58,60,62 Zn, and 60,62,64 Ge were calculated on the basis of the dispersive optical model whose parameters were extrapolated from the region of stable isotopes. The resulting parameter values lead to agreement between the total number of protons in bound states and the charge number Z of the respective nucleus. The results of the calculations are indicative of a weakly magic character of the 58 Zn nucleus, which has a traditional magic number of N = 28 and a nearly magic number of Z = 30, and the 64 Ge nucleus, for which N = Z = 32.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778815060034