Saturation of Nuclear Matter and Radii of Unstable Nuclei
スポンサーリンク
概要
- 論文の詳細を見る
We systematically examine relations among the parameters characterizing the phenomenological equation of state (EOS) of nearly symmetric, uniform nuclear matter near the saturation density by comparing macroscopic calculations of radii and masses of stable nuclei with experimental data. The EOS parameters of interest here are the symmetry energy coefficient S_0, the symmetry energy density derivative coefficient L and the incompressibility K_0 at normal nuclear density. We estimate a range of (K_0, L) from empirically reasonable values of the slope of the saturation line (the line joining the saturation points of nuclear matter at finite neutron excess) and find a strong correlation between S_0 and L. In light of the uncertainties on the values of K_0 and L, we perform macroscopic calculations of the radii of unstable nuclei expected to be produced in future facilities. We find that the matter radii depend appreciably on L, while being almost independent of K_0. This dependence implies that if the matter radii are measured with an accuracy of ±O.Ol fm for a sufficiently large number of neutron-rich nuclides to allow one to smooth out the expected staggering of the radii due to shell and pairing effects, it might be possible to derive the value of L within ±20 MeV.
- 2003-04-25
著者
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Oyamatsu Kazuhiro
Aichi Shukutoku University
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Oyamatsu Kazuhiro
Department Of Media Production And Theories Aichi Shukutoku University : The Institute Of Physical A
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Oyamatsu Kazuhiro
Department Of Energy Engineering And Science Nagoya University
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Iida K
Inst. Physical And Chemical Res. (riken) Wako Jpn
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Iida Kei
The Institute Of Physical And Chemical Research (riken)
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IIDA Kei
Department of Physics,University of Tokyo
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OYAMATSU Kazuhiro
RIKEN Nishina Center, RIKEN:Department of Human Informatics, Aichi Shukutoku University
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OYAMATSU Kazuhiro
Department of Media Production and Theories, Aichi Shukutoku University : The Institute of Physical and Chemical Research (RIKEN)
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