Abstract
At last year’s Schladming Winter School, Professor Gursey discussed some aspects of the effective Lagrangian technique, which he helped to develop [1]. In the following lectures I shall apply this technique to the study of chiral SU(3) × SU(3). As background to a detailed discussion of a model Lagrangian, I will (i) review the Lagrangian formalism, (ii) discuss the transformation properties of fields, (iii) show how field algebra and symmetry breaking that leads to PCAC are implemented. In the discussion of the model, which was worked out in collaboration with D. A. Geffen, I will lay stress on the leptonic decay constants of the spin O and spin 1 mesons, as far as comparison with experiment is concerned. For the rest, the stress will be on the technical aspects of constructing effective Lagrangians. Baryons will not be discussed, except of a brief mention in sec. (II) [2].
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