Hiroyuki Sagawa

University of Aizu, Japan

Neutron Skin Thickness and Equation of State in Asymmetric Nuclear Matter

The neutron skin thickness of stable and unstable nuclei is studied in Skyrme Hartree-Fock (SHF) and relativistic mean field (RMF) models to investigate the relation between the incompressibility, the pressure and the equation of state (EOS) in neutron matter. We found a clear linear correlation between the neutron skin thickness in heavy nuclei, 132Sn and 208Pb and the pressure of neutron matter in both SHF and RMF models, while the correlation is weak in the unstable nuclei 32Mg and 44Ar. Relations between the neutron skin thickness and other nuclear matter properties such as the symmetry energy coefficients and the nuclear incompressibility will be discussed.

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