Quark-meson coupling model for a nucleon - art. no. 038203

Citation
Sw. Hong et Bk. Jennings, Quark-meson coupling model for a nucleon - art. no. 038203, PHYS REV C, 6403(3), 2001, pp. 8203
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
0556-2813 → ACNP
Volume
6403
Issue
3
Year of publication
2001
Database
ISI
SICI code
0556-2813(200109)6403:3<8203:QCMFAN>2.0.ZU;2-8
Abstract
The quark-meson coupling model for a nucleon is considered. The model descr ibes a nucleon as an MIT bag, in which quarks are coupled to scalar and vec tor mesons. A set of coupled equations for the quark and the meson fields a re obtained and are solved in a self-consistent manner. It is shown that th e 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 s elf-energy of the bag in the quark-meson coupling model is significant and needs to be considered in doing the nuclear matter calculations.