Reevaluation of the density dependence of nucleon radius and mass in the global color symmetry model of QCD
arXiv:nucl-th/0307058 · doi:10.1016/S0375-9474(03)01574-4
Abstract
With the global color symmetry model (GCM) at finite chemical potential, the density dependence of the bag constant, the total energy and the radius of a nucleon in nuclear matter is investigated. A relation between the nuclear matter density and the chemical potential with the action of QCD being taken into account is obtained. A maximal nuclear matter density for the existence of the bag with three quarks confined within is given. The calculated results indicate that, before the maximal density is reached, the bag constant and the total energy of a nucleon decrease, and the radius of a nucleon increases slowly, with the increasing of the nuclear matter density. As the maximal nuclear matter density is reached, the mass of the nucleon vanishes and the radius becomes infinite suddenly. It manifests that a phase transition from nucleons to quarks takes place.
arXiv comment18 pages, 3 figures
References in corpus (16)
- Recent Progress in Quantum Hadrodynamics
- Composition and Structure of Protoneutron Stars
- Hadron Physics from the Global Color Model of QCD
- Continuum study of deconfinement at finite temperature
- Thermodynamic properties of a simple, confining model
- pi-pi scattering in a QCD based model field theory
- Modified Quark-Meson Coupling Model for Nuclear Matter
- Recovering Relativistic Nuclear Phenomenology from the Quark-Meson Coupling Model
- A dynamical, confining model and hot quark stars
- Deconfinement at finite chemical potential
- Density Dependence of Nucleon Bag Constant, Radius and Mass in an Effective Field Theory Model of QCD
- Medium dependence of the bag constant in the quark-meson coupling model
- Change of MIT Bag Constant in Nuclear Medium and Implication for the EMC Effect
- Nuclear Matter Properties of the Modified Quark Meson Coupling Model
- Critical analysis of quark-meson coupling models for nuclear matter and finite nuclei
- High-density nuclear matter with nonlocal confining solitons
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