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Highly deformed modes in the ab initio symplectic no-core shell model
T Dytrych, K D Sviratcheva, C Bahri, J P Draayer and J P Vary 2008 J. Phys. G: Nucl. Part. Phys. 35 095101 (12pp)   doi: 10.1088/0954-3899/35/9/095101

The systematic structure-change into the molecule-like structures in the self-conjugate 4n nuclei

Abstract. The rotational bands with the diatomic-molecule-like structure in the self-conjugate 4n light nuclei, such as, alpha - alpha , alpha -¹²C and alpha -¹⁶O, appear systematically at near the threshold energy for the decay into the relevant subunit nuclei. The relations between the structure change into the molecule-like structure and the threshold energy for the decay into the subunit nuclei are discussed. According to this discussion, the diagram for the systematic structure changes into the molecule-like structures through the alpha particle release is presented as the function of the mass number and the energy. Upon this diagram the rotational bands with K=0^+or- in light 4n nuclei can be summarized. The order of the degree of the polarization toward the separation of the subunit nuclei for the diatomic molecule-like structure case is discussed qualitatively

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