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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V. M. Kolomietz, A. I. Sanzhur

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: The direct variational method have been applied to the calculation of the symmetry energy for medium and heavy nuclei. The functional of energy of the Thomas-Fermi approximation with the effective Skyrme forces have been used. The behavior of the bulk and the surface symmetry energy as the function of the bulk nucleon density ρ_q,0 and the neutron excess have been studied for the various sets of Skyrme forces. We have calculated the average number of neutrons in the surface region, N_d, for the nuclei at the line of β-stability and the dependence of N_d on the nucleon density ρ_q,0 and on the remoteness from the line of β-stability.

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