dorsal/arxiv
View SchemaConstraining the Skyrme effective interactions and the neutron skin thickness of nuclei using isospin diffusion data from heavy ion collisions
| Authors | Lie-Wen Chen, Che Ming Ko, Bao-An Li |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610057 |
| URL | https://arxiv.org/abs/nucl-th/0610057 |
| DOI | 10.1142/S0218301306004946 |
| Journal | Int.J.Mod.Phys. E15 (2006) 1385-1396 |
Abstract
Recent analysis of the isospin diffusion data from heavy-ion collisions based on an isospin- and momentum-dependent transport model with in-medium nucleon-nucleon cross sections has led to the extraction of a value of $L=88\pm 25$ MeV for the slope of the nuclear symmetry energy at saturation density. This imposes stringent constraints on both the parameters in the Skyrme effective interactions and the neutron skin thickness of heavy nuclei. Among the 21 sets of Skyrme interactions commonly used in nuclear structure studies, the 4 sets SIV, SV, G$_\sigma$, and R$_\sigma$ are found to give $L$ values that are consistent with the extracted one. Further study on the correlations between the thickness of the neutron skin in finite nuclei and the nuclear matter symmetry energy in the Skyrme Hartree-Fock approach leads to predicted thickness of the neutron skin of $0.22\pm 0.04$ fm for $^{208}$Pb, $0.29\pm 0.04$ fm for $^{132}$Sn, and $0.22\pm 0.04$ fm for $^{124}$Sn.
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"abstract": "Recent analysis of the isospin diffusion data from heavy-ion collisions based\non an isospin- and momentum-dependent transport model with in-medium\nnucleon-nucleon cross sections has led to the extraction of a value of $L=88\\pm\n25$ MeV for the slope of the nuclear symmetry energy at saturation density.\nThis imposes stringent constraints on both the parameters in the Skyrme\neffective interactions and the neutron skin thickness of heavy nuclei. Among\nthe 21 sets of Skyrme interactions commonly used in nuclear structure studies,\nthe 4 sets SIV, SV, G$_\\sigma$, and R$_\\sigma$ are found to give $L$ values\nthat are consistent with the extracted one. Further study on the correlations\nbetween the thickness of the neutron skin in finite nuclei and the nuclear\nmatter symmetry energy in the Skyrme Hartree-Fock approach leads to predicted\nthickness of the neutron skin of $0.22\\pm 0.04$ fm for $^{208}$Pb, $0.29\\pm\n0.04$ fm for $^{132}$Sn, and $0.22\\pm 0.04$ fm for $^{124}$Sn.",
"arxiv_id": "nucl-th/0610057",
"authors": [
"Lie-Wen Chen",
"Che Ming Ko",
"Bao-An Li"
],
"categories": [
"nucl-th",
"astro-ph",
"nucl-ex"
],
"doi": "10.1142/S0218301306004946",
"journal_ref": "Int.J.Mod.Phys. E15 (2006) 1385-1396",
"title": "Constraining the Skyrme effective interactions and the neutron skin thickness of nuclei using isospin diffusion data from heavy ion collisions",
"url": "https://arxiv.org/abs/nucl-th/0610057"
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