dorsal/arxiv
View SchemaLevel density of a Fermi gas: average growth and fluctuations
| Authors | Patricio Leboeuf, Jérôme Roccia |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0602044 |
| URL | https://arxiv.org/abs/nucl-th/0602044 |
| DOI | 10.1103/PhysRevLett.97.010401 10.1103/PhysRevLett.99.169901 |
| Journal | Phys.Rev.Lett.97:010401,2006; Erratum-ibid.99:169901,2007 |
Abstract
We compute the level density of a two--component Fermi gas as a function of the number of particles, angular momentum and excitation energy. The result includes smooth low--energy corrections to the leading Bethe term (connected to a generalization of the partition problem and Hardy--Ramanujan formula) plus oscillatory corrections that describe shell effects. When applied to nuclear level densities, the theory provides a unified formulation valid from low--lying states up to levels entering the continuum. The comparison with experimental data from neutron resonances gives excellent results.
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"abstract": "We compute the level density of a two--component Fermi gas as a function of\nthe number of particles, angular momentum and excitation energy. The result\nincludes smooth low--energy corrections to the leading Bethe term (connected to\na generalization of the partition problem and Hardy--Ramanujan formula) plus\noscillatory corrections that describe shell effects. When applied to nuclear\nlevel densities, the theory provides a unified formulation valid from\nlow--lying states up to levels entering the continuum. The comparison with\nexperimental data from neutron resonances gives excellent results.",
"arxiv_id": "nucl-th/0602044",
"authors": [
"Patricio Leboeuf",
"J\u00e9r\u00f4me Roccia"
],
"categories": [
"nucl-th",
"cond-mat.mes-hall"
],
"doi": "10.1103/PhysRevLett.97.010401 10.1103/PhysRevLett.99.169901",
"journal_ref": "Phys.Rev.Lett.97:010401,2006; Erratum-ibid.99:169901,2007",
"title": "Level density of a Fermi gas: average growth and fluctuations",
"url": "https://arxiv.org/abs/nucl-th/0602044"
},
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