Simplified modeling of cluster-shell competition in Ne20 and Mg24

N. Itagaki, J. Cseh, M. Płoszajczak

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We investigate properties of the generator coordinate method (GCM) on a collective basis of antisymmetrized quasicluster states to describe the cluster-shell competition in Ne20 and Mg24 owing to the spin-orbit interaction. By introducing a single additional parameter in the antisymmetrized-cluster basis function, a continuous transformation of the α cluster(s) into independent nucleons can be described. We apply this GCM trial wave function to study in detail the transition from cluster states [16O+α] and [16O+α+α] to shell-model states [16O+4N] and [16O+8N], respectively. An optimal value of the strength of the spin-orbit interaction is deduced by reproducing level spacing in Ne20. A possible connection to the group theoretical understanding of the cluster-shell configuration transition is also discussed.

Original languageEnglish
Article number014302
JournalPhysical Review C - Nuclear Physics
Volume83
Issue number1
DOIs
Publication statusPublished - Jan 7 2011

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spin-orbit interactions
generators
nucleons
spacing
wave functions
configurations

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Simplified modeling of cluster-shell competition in Ne20 and Mg24. / Itagaki, N.; Cseh, J.; Płoszajczak, M.

In: Physical Review C - Nuclear Physics, Vol. 83, No. 1, 014302, 07.01.2011.

Research output: Contribution to journalArticle

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