Chiral-invariant color dielectric model of the nucleon

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Abstract
A color dielectric model of quark confinement is solved numerically for the nucleon. The dielectric field χ is taken to be a positive-definite function of the mean fields σ for the color-screening quark condensate and φ for the color-antiscreening gluon condensate. χ approaches zero outside the nucleon to provide confinement. The pion field is introduced as the chiral partner of σ. Fitting the nucleon properties puts limits on the parameters such that χ and (σ,φ) are significantly different from their nominal values 1 and 0 inside the nucleon.