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Baryonic masses based on the NJL model |
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| Authors: | W.M. Alberico F. Giacosa M. Nardi C. Ratti |
| Affiliation: | 1.Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino, Italy,IT;2.Institut für Theoretische Physik, Universit?t Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany,DE |
| 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. Received: 27 September 2002 / Accepted: 4 October 2002 / Published online: 4 February 2003 RID="a" ID="a"e-mail: giacosa@tphys.physik.uni-tuebingen.de Communicated by A. Molinari |
| Keywords: | PACS. 12.39.-x Phenomenological quark models – 12.39.Ba Bag model – 12.39.Fe Chiral Lagrangians 14.20.-c Baryons (including antiparticles) |
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