SU(3) × SU(3) symmetry breaking in a simple model |
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| Authors: | B. De Wit |
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| Affiliation: | Institute for Theoretical Physics, University of Utrecht, Utrecht, The Netherlands |
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| Abstract: | A field-theoretical model, due to Lévy, is studied. It contains a triplet of quarks and a pseudoscalar and a scalar meson nonet. The original SU(3) × SU(3) symmetry is broken by terms linear in the scalar meson fields. A renormalization and regularization procedure is defined in order to remove the ultra-violet divergences. The possibility of a spontaneous breakdown of the symmetry is described and the Goldstone theorem is verified in the one-loop approximation. |
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