dorsal/arxiv
View SchemaDeconfinement in the Quark Meson Coupling Model
| Authors | I. Zakout, H. R. Jaqaman |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9805037 |
| URL | https://arxiv.org/abs/nucl-th/9805037 |
| DOI | 10.1103/PhysRevC.59.962 |
| Journal | Phys.Rev. C59 (1999) 962-967 |
Abstract
The Quark Meson Coupling Model which describes nuclear matter as a collection of non-overlapping MIT bags interacting by the self-consistent exchange of scalar and vector mesons is used to study nuclear matter at finite temperature. In its modified version, the density dependence of the bag constant is introduced by a direct coupling between the bag constant and the scalar mean field. In the present work, the coupling of the scalar mean field with the constituent quarks is considered exactly through the solution of the Dirac equation. Our results show that a phase transition takes place at a critical temperature around 200 MeV in which the scalar mean field takes a nonzero value at zero baryon density. Furthermore it is found that the bag constant decreases significantly when the temperature increases above this critical temperature indicating the onset of quark deconfinement.
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"abstract": "The Quark Meson Coupling Model which describes nuclear matter as a collection\nof non-overlapping MIT bags interacting by the self-consistent exchange of\nscalar and vector mesons is used to study nuclear matter at finite temperature.\nIn its modified version, the density dependence of the bag constant is\nintroduced by a direct coupling between the bag constant and the scalar mean\nfield. In the present work, the coupling of the scalar mean field with the\nconstituent quarks is considered exactly through the solution of the Dirac\nequation. Our results show that a phase transition takes place at a critical\ntemperature around 200 MeV in which the scalar mean field takes a nonzero value\nat zero baryon density. Furthermore it is found that the bag constant decreases\nsignificantly when the temperature increases above this critical temperature\nindicating the onset of quark deconfinement.",
"arxiv_id": "nucl-th/9805037",
"authors": [
"I. Zakout",
"H. R. Jaqaman"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.59.962",
"journal_ref": "Phys.Rev. C59 (1999) 962-967",
"title": "Deconfinement in the Quark Meson Coupling Model",
"url": "https://arxiv.org/abs/nucl-th/9805037"
},
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