Principle of Equivalence for all Strongly Interacting Particles within the S -Matrix Framework

The Feynman principle is formulated within the Smatrix framework. It is postulated that all poles of the S-matrix are Regge poles; it is shown how to distinguish between Regge and elementary particle poles. High-energy forward and backward peaks are associated with Regge poles, and together with the principle of maximal analyticity in the J plane, a natural explanation of why low-mass particles tend to have low internal quantum numbers is provided, (L.N.N.)