Strangeness in the Skyrme and in Nambu-Jona Lasinio Models

1992/11/19 by Michał Praszałowicz, M. Praszalowicz, Praszalowicz, M.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Quantum chaos and dynamical systems #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9211278

(Talk at Siegen Workshop on Skyrmions, October 1992, to be published in the proceedings) 13 pages, LaTeX, psfig

openalex publication_date 1992/11/19 · arxiv created 1992/11/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We discuss the phenomenology of SU(3) Skyrme and Nambu--Jona-Lasinio models. We show that while the Skyrme model, in its simplest version, is unable do reproduce the hyperon spectrum, the NJL model describes both hyperon and isospin splittings with satisfactory accuracy. The difference between the two models lies in new \em anomalous moments of inertia, which vanish in the Skyrme model and get non-zero contribution from the \em valence quarks in the NJL model

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