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Multicluster description of p-shell nuclei in a microscopic model

par Dufour, Marianne ;Descouvemont, Pierre
Référence Nuclear physics. A, 605, 2, page (160-172)
Publication Publié, 1996

Article révisé par les pairs

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Résumé :

We use the Generator Coordinate Method to investigate some nuclei between A = 12 and A = 16 in a multicluster model. The microscopic wave functions are defined from cluster wave functions, involving three α particles and any s-shell nucleus. The α clusters are located at the apexes of an equilateral triangle, and form the basis of a tetrahedral structure, with the additional s cluster at the top of its height. Optimal configurations are determined for the 12C, 13C, 14C, 15N and 16O nuclei. We show that, with respect to the more usual shell-model approach, this multicluster description significantly improves the binding energy and the spectroscopic properties.