Nuclear radii of Na and Mg isotopes
1998; Elsevier BV; Volume: 630; Issue: 3-4 Linguagem: Inglês
10.1016/s0375-9474(98)00799-4
ISSN1873-1554
AutoresToshio Suzuki, H. Geißel, O. V. Bochkarev, L.V. Chulkov, M. S. Golovkov, Nobuhisa Fukunishi, D. Hirata, H. Irnich, Z. Janas, H. Keller, T. Kobayashi, G. Kraus, G. Münzenberg, S. Neumaier, F. Nickel, A. Ozawa, A. Piechaczeck, E. Roeckl, W. Schwab, K. Sümmerer, K. Yoshida, I. Tanihata,
Tópico(s)High-pressure geophysics and materials
ResumoThe effective root-mean-square (rms) matter radii of ANa (A = 20–23, 25–32) and AMg (A = 20, 22, 23, 27, 29–32) have been deduced from the measured interaction cross sections using a Glauber-type calculation. It was found that the increase of rms matter radii in Na isotopes is primarily a consequence of the increase of rms neutron radii. A correlation between the radii, corrected for quadrupole deformation, and the Fermi-energy difference was observed for both Na and Mg isotopes. This correlation can be explained by a model that assumes the valence nucleons are responsible for the changes in nuclear radii. The presence of a neutron skin is suggested for neutron-rich Na and Mg isotopes. An application to the nuclear equation of state (EOS) is discussed.
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