ABSTRACT
The "eightfold way" has been quite successful in describing the masses of elementary particles and resonances, and in explaining the decay widths of various resonances. Various other tests of this symmetry scheme have been proposed which concern themselves with reaction cross sections. Because of the large number of S-matrix elements which usually occur, the simplest proposed tests have taken the form of equalities. Unfortunately, these predictions of equalities have been difficult to verify. The chapter proposes a rule for reaction processes, which seems capable of experimental test. It finds that the reaction predictions of SU3 are, on the whole, in reasonable agreement with experiment, when comparisons are made at equal Q values.
