Nuclear Physics and Atomic Energy 17 (2016) 5

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, Russian
Periodicity: 4 times per year

Open access peer reviewed journal

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Nucl. Phys. At. Energy 2016, volume 17, issue 1, pages 5-11.
Section: Nuclear Physics.
Received: 02.09.2015; Accepted: 11.04.2016; Published online: 02.06.2016.

Full text (en)
https://doi.org/10.15407/jnpae2016.01.005

Neutron skin and halo in medium and heavy nuclei within the extended Thomas - Fermi theory

S. V. Lukyanov^*, A. I. Sanzhur

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

^*Corresponding author. E-mail address: lukyanov@kinr.kiev.ua.

Abstract: The neutron skin and halo distributions in medium and heavy nuclei are calculated within the extended Thomas - Fermi approximation. Calculations are carried out for the effective Skyrme-like forces using the direct variational method. The analytical expression for the isovector shift of the rms radii Δr_np as a sum of skin- and halo-like terms is obtained. The contribution of halo and skin terms to Δr_np are found to be approximately equal.

Keywords: neutron skin, neutron halo, Thomas - Fermi theory, variational method, Skyrme forces.

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