Magic numbers for shape coexistence

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Δημοσιευμένα: Απρ 1, 2019
DOI: https://doi.org/10.12681/hnps.1789
I. E. Assimakis
Institute of Nuclear and Particle Physics,National Centre for Scientific Research “Demokritos”
Dennis Bonatsos
Institute of Nuclear and Particle Physics,National Centre for Scientific Research “Demokritos”
Andriana Martinou
Institute of Nuclear and Particle Physics,National Centre for Scientific Research “Demokritos”
S. Sarantopoulou
Institute of Nuclear and Particle Physics,National Centre for Scientific Research “Demokritos”
S. Peroulis
Department of Physics, National Kapodistrian University of Athens and INPP, NCSR "Demokritos"
T. J. Mertzimekis
Department of Physics, National and Kapodistrian University of Athens
N. Minkov
Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences
Περίληψη
The increasing deformation in atomic nuclei leads to the change of the classical magic numbers (2,8,20,28,50,82…) which dictate the arrangement of nucleons in complete shells. The magic numbers of the three-dimensional harmonic oscillator (2,8,20,40,70,…) emerge at deformations around ε=0.6. At lower deformations the two sets of magic numbers antagonize, leading to shape coexistence. A quantitative investigation is performed using the usual Nilsson model wave functions and the recently introduced proxy–SU(3) scheme.
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