dorsal/arxiv
View SchemaEvolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions
| Authors | Bao-An Li, Lie-Wen Chen |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0605002 |
| URL | https://arxiv.org/abs/nucl-th/0605002 |
| DOI | 10.1103/PhysRevC.74.034610 |
| Journal | Phys.Rev. C74 (2006) 034610 |
Abstract
It is shown that the experimentally observed decrease of the nuclear symmetry energy with the increasing centrality or the excitation energy in isotopic scaling analyses of heavy-ion reactions can be well understood analytically within a degenerate Fermi gas model. The evolution of the symmetry energy is found to be mainly due to the variation in the freeze-out density rather than temperature. The isoscaling analyses are useful for probing the interaction part of the nuclear symmetry energy, provided that both the freeze-out temperature and density of the fragments can be inferred simultaneously from the experiments.
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"abstract": "It is shown that the experimentally observed decrease of the nuclear symmetry\nenergy with the increasing centrality or the excitation energy in isotopic\nscaling analyses of heavy-ion reactions can be well understood analytically\nwithin a degenerate Fermi gas model. The evolution of the symmetry energy is\nfound to be mainly due to the variation in the freeze-out density rather than\ntemperature. The isoscaling analyses are useful for probing the interaction\npart of the nuclear symmetry energy, provided that both the freeze-out\ntemperature and density of the fragments can be inferred simultaneously from\nthe experiments.",
"arxiv_id": "nucl-th/0605002",
"authors": [
"Bao-An Li",
"Lie-Wen Chen"
],
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"nucl-th",
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],
"doi": "10.1103/PhysRevC.74.034610",
"journal_ref": "Phys.Rev. C74 (2006) 034610",
"title": "Evolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions",
"url": "https://arxiv.org/abs/nucl-th/0605002"
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