SOLITON FORMATION IN SIGMA-MODELS

Authors
FIOLHAIS M DAPROVIDENCIA J ROSINA M DESOUSA CA
Citation
M. Fiolhais et al., SOLITON FORMATION IN SIGMA-MODELS, Physical review. C. Nuclear physics, 56(6), 1997, pp. 3311-3319
Citations number
15
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
56
Issue
6
Year of publication
1997
Pages
3311 - 3319
Database
ISI
SICI code
0556-2813(1997)56:6<3311:SFIS>2.0.ZU;2-J
Abstract
The connection between the linear a model and the Nambu-Jona-Lasinio m odel is investigated on the basis of a conventional Hartree-Fock appro ach. As a missing link, an intermediate model is used: a linear sigma model with quarks (including the Dirac sea) but no ''Mexican hat.'' Th is model is particularly convenient to study the conditions for solito n formation and the stability of the soliton when the Dirac sea is inc luded.