Quark-Meson Coupling Model for a Nucleon

Details Quark-Meson Coupling Model for a Nucleon Quark-Meson Coupling Model for a Nucleon

2000-09-29

arxiv.org/abs/nucl-th/0009089v1

Phys.Rev. C64 (2001) 038203

Physics

Nuclear Physics

Nuclear Theory

3 figures

Scientific paper

The quark-meson coupling model for a nucleon is considered. The model describes a nucleon as an MIT bag, in which quarks are coupled to scalar and vector mesons. A set of coupled equations for the quark and the meson fields are obtained and are solved in a self-consistent way. It is shown that the mass of a nucleon as a dressed MIT bag interacting with sigma- and omega-meson fields significantly differs from the mass of a free MIT bag. A few sets of model parameters are obtained so that the mass of a dressed MIT bag becomes the nucleon mass. The results of our calculations imply that the self-energy of the bag in the quark-meson coupling model is significant and needs to be considered in doing the nuclear matter calculations.

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