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Collective model with isovector pair and alpha-particle-type correlations

R. V. Jolos

Bogoliubov Laboratory of Nuclear Physics, Joint Institute for Nuclear Research 141980, Dubna, Russia

Dubna State University 141982, Dubna, Russia

E-mail Address: jolos@theor.jinr.ru

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E. A. Kolganova

Bogoliubov Laboratory of Nuclear Physics, Joint Institute for Nuclear Research 141980, Dubna, Russia

Dubna State University 141982, Dubna, Russia

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, and

D. A. Sazonov

Dubna State University 141982, Dubna, Russia

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https://doi.org/10.1142/S021830132150083XCited by:1 (Source: Crossref)

Abstract

The collective Hamiltonian including isovector pairing and $α$ $α$ -particle-type correlation degrees of freedom is constructed. The Hamiltonian is applied to description of the relative energies of the ground states of even–even nuclei around $^{56}$ $^{56}$ Ni. A satisfactory description of the experimental data is obtained. A significant improvement of the agreement with the experimental data compared to our previous calculations is explained by inclusion in the Hamiltonian of the dynamical variables describing $α$ $α$ -particle-type correlations.

Keywords:

PACS: 21.10.−k, 21.10.Dr, 21.60.Ev

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