Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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B. E. Grinyuk, I. V. Simenog

M. M. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Within a three-particle model (α + N + N), structure peculiarities of ⁶He and ⁶Li halo nuclei are studied. Within a four-particle model (α + α + N + N), the structure of ¹⁰Be and ¹⁰С nuclei is analized and compared with that of ⁶He and ⁶Li. The charge density distributions and form factors of these nuclei are calculated and explained. The density distributions of extra nucleons in ¹⁰Be and ¹⁰С are studied and compared with the calculated distributions of halo nucleons in ⁶He and ⁶Li. A detailed study of the asymptotics of the density distributions is carried out for the three-particle ⁶He and ⁶Li nuclei. Asymptotic behavior of the amplitudes of clusterization is analyzed, and the coefficients of clusterization are calculated for the deuteron cluster in ⁶Li and the dineutron cluster in ⁶He. The variational method with optimized Gaussian bases is used in calculations.

Keywords: ⁶He, ⁶Li, ¹⁰Be, ¹⁰C, charge density distribution, form factor, coefficient of clusterization.

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