부산대학교 도서관

In the development of a Lagrangian for the interaction of baryons with K- and pi -mesons, a Lagrangian that is invariant with respect to reflection, rotation and timeinversion, a form was obtained that has eight different coupling constants. The efforts directed at deriving new symmetries is related to the reduction of the number of coupling constants, since the reality of eight different coupling constants implies the existence of eight new physical constants. The derivation of a number of symmetries is reviewed, including those or Gell-Mann, Pais, Lichtenberg, Sakurai, and the formalism of Dallaporta. Although the latter formalism gives best agreement with experimental results, it has many important shortcomings. None of the theories take into account existing characteristics of elementary particles, such as the internal structure. The rapid accumulation of experimental data may play the important role in constructing a new, more perfect theory for strong interactions of elementary particles. (TTT)