Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-04-26
Phys.Rev.C82:024321,2010
Physics
Nuclear Physics
Nuclear Theory
18 pages, 9 figures, 1 table. Significantly expanded to include a number of details and discussions. Title shortened. Accepted
Scientific paper
10.1103/PhysRevC.82.024321
Expressing explicitly the parameters of the standard Skyrme interaction in terms of the macroscopic properties of asymmetric nuclear matter, we show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables of finite nuclei and nuclear matter properties. We find that existing data on neutron skin thickness $\Delta r_{np}$ of Sn isotopes give an important constraint on the symmetry energy $E_{sym}({\rho _{0}})$ and its density slope $L$ at saturation density ${\rho _{0}}$. Combining these constraints with those from recent analyses of isospin diffusion and double neutron/proton ratio in heavy-ion collisions at intermediate energies leads to a more stringent limit on $L$ approximately independent of $E_{sym}({\rho _{0}})$. The implication of these new constraints on the $\Delta r_{np}$ of $^{208}$Pb as well as the core-crust transition density and pressure in neutron stars is discussed.
Chen Lie-Wen
Ko Che Ming
Li Bao-An
Xu Jun
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