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Title: Chiral quark-soliton model in the Wigner-Seitz approximation

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 nonlinear representation of the spontaneously broken SU(2){sub L}xSU(2){sub 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. (c) 2000 The American Physical Society.

Authors:
 [1];  [2]
  1. College of William and Mary, Williamsburg, Virginia 23185 (United States)
  2. Istituto Nazionale di Fisica Nucleare, Sezione di Torino, via P. Giuria 1, I-10125 Torino, (Italy)
Publication Date:
OSTI Identifier:
20216352
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR MATTER; NUCLEONS; QUARK MODEL; SOLITONS; CHIRAL SYMMETRY; SU-2 GROUPS; WIGNER-SEITZ METHOD; BINDING ENERGY; PIONS; QUANTUM CHROMODYNAMICS; THEORETICAL DATA

Citation Formats

Amore, P., and De Pace, A. Chiral quark-soliton model in the Wigner-Seitz approximation. United States: N. p., 2000. Web. doi:10.1103/PhysRevC.61.055201.
Amore, P., & De Pace, A. Chiral quark-soliton model in the Wigner-Seitz approximation. United States. doi:10.1103/PhysRevC.61.055201.
Amore, P., and De Pace, A. Mon . "Chiral quark-soliton model in the Wigner-Seitz approximation". United States. doi:10.1103/PhysRevC.61.055201.
@article{osti_20216352,
title = {Chiral quark-soliton model in the Wigner-Seitz approximation},
author = {Amore, P. and De Pace, A.},
abstractNote = {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 nonlinear representation of the spontaneously broken SU(2){sub L}xSU(2){sub 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. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevC.61.055201},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 5,
volume = 61,
place = {United States},
year = {2000},
month = {5}
}