Bulg. J. Phys. vol.48 no.5-6 (2021), pp. 524-534

A Unified Description of Spectra of Different Configurations, Deformation and Energy Regions

G. Riczu, J. Cseh
Institute for Nuclear Research, Debrecen, Bem ter 18/C, Hungary-4026
Abstract. The multiconfigurational dynamical symmetry (MUSY) is applied for the unified description of the spectra of 20Ne, 28Si, 36Ar, and 44Ti nuclei. They contain shell-like configurations in the ground-state region, core-plus-alpha states above the alpha-separation energy, and exotic cluster states from heavy-ion reactions. The excitation energy and the quadrupole deformation cover large ranges. The gross features of the spectra are reasonably well reproduced by a simple Hamiltonian, in some cases even parameter-free predictions are obtained for high-lying cluster spectra from the low-lying quartet bands in good agreement with experimental observation.

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