Abstract
The density dependence of nuclear symmetry energy remains poorly constrained. Starting from precise empirical values of the nuclear volume and surface symmetry energy coefficients and the nuclear saturation density, we show how in the ambit of microscopic calculations with different energy density functionals, the value of the symmetry energy slope parameter L along with that for neutron skin can be put in tighter bounds. The value of L is found to be L=64±5 MeV. For 208Pb, the neutron skin thickness comes out to be 0.188±0.014 fm. Knowing L, the method can be applied to predict neutron skin thicknesses of other nuclei.
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