Density dependence of the nuclear symmetry energy constrained by mean-field calculations

Details Density dependence of the nuclear symmetry energy constrained by mean-field calculations Density dependence of the nuclear symmetry energy constrained by mean-field calculations

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012phrvc..85c4308d&link_type=abstract

Physical Review C, vol. 85, Issue 3, id. 034308

Other

Symmetry Energy, Asymmetric Matter, Neutron Matter, Neutron Star Crust

Scientific paper

We establish a correlation for the symmetry energy at saturation density S0, slope parameter L, and curvature parameter Ksym based on widely different mean-field interactions. With the help of this correlation and available empirical and theoretical information, the density-dependent behavior around the saturation density is determined. We compare the results obtained with the present approach with those by other analyses. With this obtained density-dependent behavior of the symmetry energy, the neutron skin thickness of 208Pb and some properties of neutron stars are investigated. In addition, it is found that the expression S(ρ)=S0(ρ/ρ0)γ or S(ρ)=12.5ρ/ρ02/3+Cpρ/ρ0γ does not reproduce the density dependence of the symmetry energy as predicted by the mean-field approach around nuclear saturation density.

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