dorsal/arxiv
View SchemaBulk and single-particle properties of hyperonic matter at finite temperature
| Authors | Arnau Rios, Artur Polls, Angels Ramos, Isaac Vidaña |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0503074 |
| URL | https://arxiv.org/abs/nucl-th/0503074 |
| DOI | 10.1103/PhysRevC.72.024316 |
| Journal | Phys.Rev. C72 (2005) 024316 |
Abstract
Bulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented with an effective three-body force to reproduce the saturating properties of nuclear matter. The modern Nijmegen NSC97e potential is employed for the hyperon-nucleon and hyperon-hyperon interactions. The effect of the temperature on the in-medium effective interaction is found to be, in general, very small and the single-particle potentials differ by at most 25% for temperatures in the range from 0 to 60 MeV. The bulk properties of infinite matter of baryons, either nuclear isospin symmetric or a beta-stable composition which includes a non-zero fraction of hyperons, are obtained. It is found that the presence of hyperons can modify the thermodynamical properties of the system in a non-negligible way.
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"abstract": "Bulk and single-particle properties of hot hyperonic matter are studied\nwithin the Brueckner-Hartree-Fock approximation extended to finite temperature.\nThe bare interaction in the nucleon sector is the Argonne V18 potential\nsupplemented with an effective three-body force to reproduce the saturating\nproperties of nuclear matter. The modern Nijmegen NSC97e potential is employed\nfor the hyperon-nucleon and hyperon-hyperon interactions. The effect of the\ntemperature on the in-medium effective interaction is found to be, in general,\nvery small and the single-particle potentials differ by at most 25% for\ntemperatures in the range from 0 to 60 MeV. The bulk properties of infinite\nmatter of baryons, either nuclear isospin symmetric or a beta-stable\ncomposition which includes a non-zero fraction of hyperons, are obtained. It is\nfound that the presence of hyperons can modify the thermodynamical properties\nof the system in a non-negligible way.",
"arxiv_id": "nucl-th/0503074",
"authors": [
"Arnau Rios",
"Artur Polls",
"Angels Ramos",
"Isaac Vida\u00f1a"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.72.024316",
"journal_ref": "Phys.Rev. C72 (2005) 024316",
"title": "Bulk and single-particle properties of hyperonic matter at finite temperature",
"url": "https://arxiv.org/abs/nucl-th/0503074"
},
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