dorsal/arxiv
View SchemaNuclear symmetry energy: from nuclear extremes to neutron-star matter
| Authors | Pawel Danielewicz |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0411115 |
| URL | https://arxiv.org/abs/nucl-th/0411115 |
Abstract
Extrapolations from nuclei to neutron stars hinge on the symmetry term in nuclear binding formulas. The term describes reduction in the binding associated with neutron-proton (np) imbalance. Regrettably, binding formulas in the literature commonly lack an intrinsic consistency with regard to the symmetry term. Our elementary considerations determine the universal macroscopic limit for the term and predict its weakening in light nuclei due to emergence of the nuclear asymmetry-skin. Experimental systematic of isobaric-analogue states allows for a determination of the volume and surface coefficients within the macroscopic limit of the symmetry term, disregarding any reminder of a binding formula. The results are next exploited to constrain the dependence of symmetry energy on nuclear density, essential for the neutron-star predictions.
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"abstract": "Extrapolations from nuclei to neutron stars hinge on the symmetry term in\nnuclear binding formulas. The term describes reduction in the binding\nassociated with neutron-proton (np) imbalance. Regrettably, binding formulas in\nthe literature commonly lack an intrinsic consistency with regard to the\nsymmetry term. Our elementary considerations determine the universal\nmacroscopic limit for the term and predict its weakening in light nuclei due to\nemergence of the nuclear asymmetry-skin. Experimental systematic of\nisobaric-analogue states allows for a determination of the volume and surface\ncoefficients within the macroscopic limit of the symmetry term, disregarding\nany reminder of a binding formula. The results are next exploited to constrain\nthe dependence of symmetry energy on nuclear density, essential for the\nneutron-star predictions.",
"arxiv_id": "nucl-th/0411115",
"authors": [
"Pawel Danielewicz"
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"nucl-th"
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"title": "Nuclear symmetry energy: from nuclear extremes to neutron-star matter",
"url": "https://arxiv.org/abs/nucl-th/0411115"
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