We employ the Nambu Jona--Lasinio model to determine the vacuum pressure on the quarks in a baryon and hence their density inside. Then we estimate the baryonic masses by implementing the local density approximation for the mean field quark energies obtained in a uniform and isotropic system. We obtain a fair agreement with the experimental masses.
@article{arxiv.nucl-th/0206071,
title = {Baryonic masses based on the NJL model},
author = {W. M. Alberico and F. Giacosa and M. Nardi and C. Ratti},
journal= {arXiv preprint arXiv:nucl-th/0206071},
year = {2014}
}