ABSTRACT
This chapter shows that the strong interactions of baryons and mesons are correctly described in terms of the broken "eightfold way". It looks at some fundamental explanation of the certain situation. A highly promised approach is the purely dynamical "boo trap" model for all the strongly interacting particles within which one may try to derive isotopic spin and strangeness conservation and broken eightfold symmetry from self-consistency alone. With only strong interactions, the orientation of the asymmetry in the unitary space cannot be specified. The chapter shows that in some way the selection of specific components of the F-spin by electromagnetism and the weak interactions determines the choice of isotopic spin and hypercharge directions. There is the alternative possibility that the quarks are unstable under decay into baryon plus anti-di-quark or anti-baryon plus quadri-quark. In any case, some particle of fractional charge would have to be absolutely stable.
