Hadron mass, Regge pole model and E-infinity theory

With the use of Regge pole model and E-infinity theory, we have calculated the masses of the excited states in hadrons, and obtained the nice agreement with experiments. We have shown the Regge–Chew–Frautschi diagrams and discussed some properties of excited states in hadrons. We have also classified the masses of elementary particles according to the mass formula , which we have used in this paper.