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arXiv · 2207.14591

Intrinsic states of deformed N=Z nuclei in a quartet formalism

M. Sambataro·N. Sandulescu
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Abstract

The band structure of N=Z nuclei is constructed from intrinsic states defined in terms of quartets. The simplest of these states is a condensate of collective quartets with isospin T=0. The other intrinsic states are built by promoting one quartet of the condensate to an excited T=0 configuration. From these intrinsic states, by angular momentum projection, band structures are generated that approximate well the experimental ones. The projected states also reproduce to a very good extent the spectra resulting from configuration interaction calculations based on the same quartets forming the intrinsic states. These results show that the quartet-based intrinsic states provide the appropriate framework to understand in a simple and intuitive manner the emergence of band-like structures in N=Z nuclei.

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M. Sambataro, N. Sandulescu. 2022-07-29. Intrinsic states of deformed N=Z nuclei in a quartet formalism. https://arxiv.org/abs/2207.14591

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