D. Bonatsos, A. Martinou, Spyridon K. Peroulis, T. Mertzimekis, N. Minkov
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引用次数: 1
Abstract
Systematics of B(E2) transition rates connecting the first excited $0_2^+$ state to the first excited $2_1^+$ state of the ground state band in even-even nuclei indicates that shape coexistence of the ground state band and the first excited $K=0$ band should be expected in nuclei lying within the stripes of nucleon numbers 7-8, 17-20, 34-40, 59-70, 96-112 predicted by the dual shell mechanism of the proxy-SU(3) model, avoiding their junctions, within which high deformation is expected. Systematics of the excitation energies of the $0_2^+$ states in even-even nuclei show that shape coexistence due to proton-induced neutron particle-hole excitations is related to a first order shape/phase transition from spherical to deformed shapes, while shape coexistence due to neutron-induced proton particle-hole excitations is observed along major proton shell closures.
期刊介绍：
Journal of Physics G: Nuclear and Particle Physics (JPhysG) publishes articles on theoretical and experimental topics in all areas of nuclear and particle physics, including nuclear and particle astrophysics. The journal welcomes submissions from any interface area between these fields.
All aspects of fundamental nuclear physics research, including:
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astrophysical neutrino physics;
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JPhysG publishes a variety of article types for the community. As well as high-quality research papers, this includes our prestigious topical review series, focus issues, and the rapid publication of letters.
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