dorsal/arxiv
View SchemaChiral quark-soliton model in the Wigner-Seitz approximation
| Authors | P. Amore, A. De Pace |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9910074 |
| URL | https://arxiv.org/abs/nucl-th/9910074 |
| DOI | 10.1103/PhysRevC.61.055201 |
| Journal | Phys.Rev. C61 (2000) 055201 |
Abstract
In this paper we study the modification of the properties of the nucleon in the nucleus within the quark-soliton model. This is a covariant, dynamical model, which provides a non-linear representation of the spontaneously broken SU(2)_L X SU(2)_R symmetry of QCD. The effects of the nuclear medium are accounted for by using the Wigner-Seitz approximation and therefore reducing the complex many-body problem to a simpler single-particle problem. We find a minimum in the binding energy at finite density, a change in the isoscalar nucleon radius and a reduction of the in-medium pion decay constant. The latter is consistent with a partial restoration of chiral symmetry at finite density, which is predicted by other models.
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"abstract": "In this paper we study the modification of the properties of the nucleon in\nthe nucleus within the quark-soliton model. This is a covariant, dynamical\nmodel, which provides a non-linear representation of the spontaneously broken\nSU(2)_L X SU(2)_R symmetry of QCD. The effects of the nuclear medium are\naccounted for by using the Wigner-Seitz approximation and therefore reducing\nthe complex many-body problem to a simpler single-particle problem. We find a\nminimum in the binding energy at finite density, a change in the isoscalar\nnucleon radius and a reduction of the in-medium pion decay constant. The latter\nis consistent with a partial restoration of chiral symmetry at finite density,\nwhich is predicted by other models.",
"arxiv_id": "nucl-th/9910074",
"authors": [
"P. Amore",
"A. De Pace"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.61.055201",
"journal_ref": "Phys.Rev. C61 (2000) 055201",
"title": "Chiral quark-soliton model in the Wigner-Seitz approximation",
"url": "https://arxiv.org/abs/nucl-th/9910074"
},
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