2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 16, 221-228 (2003)
DOI: 10.1140/epja/i2002-10088-6

Baryonic masses based on the NJL model

W.M. Alberico1, F. Giacosa2, M. Nardi1 and C. Ratti1

1  Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino, Italy
2  Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany

giacosa@tphys.physik.uni-tuebingen.de

(Received: 27 September 2002 / Published online: 4 February 2003)

Abstract
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. 14.20.-c Baryons (including antiparticles)

PACS
12.39.-x - Phenomenological quark models.
12.39.Ba - Bag model.
12.39.Fe - Chiral Lagrangians.

© Società Italiana di Fisica, Springer-Verlag 2003