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Nuclear radii of Na and Mg isotopes

✍ Scribed by T. Suzuki; H. Geissel; O. Bochkarev; L. Chulkov; M. Golovkov; N. 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

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 862 KB
Volume: 630
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(98)00799-4

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✦ Synopsis

The 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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