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Baryonic masses based on the NJL model

  • W.M. Alberico
  • F. Giacosa
  • M. Nardi
  • C. Ratti

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.

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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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2003

Authors and Affiliations

  • W.M. Alberico
    • 1
  • F. Giacosa
    • 2
  • M. Nardi
    • 1
  • C. Ratti
    • 1
  1. 1.Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino, ItalyIT
  2. 2.Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, GermanyDE

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