Coexistence of quartets and pairs in even-even nuclei
arXiv:2212.08002 · doi:10.1016/j.nuclphysa.2023.122675
Abstract
We analyse the structure of the ground states of even-even nuclei with nucleons moving in the same major shell and interacting via realistic two-body forces of shell-model type. We express the ground states of these nuclei as a product of a quartet term, which represents the subsystem, and a pair condensate built with the excess neutrons. The accuracy of this approximation is discussed for nuclei with valence nucleons in the and major shells.
arXiv comment9 pages, 4 figures
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