Insight of the relation between Regge theory and Hadron dynamics

Abstract

In the present contribution, efforts are made to develop an insight between two verticals of strong interaction phenomenology, namely the archaic Regge theory and an avant-garde Hadron dynamics. Even before the advent of quantum chromodynamics (QCD), Regge theory served as an effective tool in the understanding of the high energy limit of hadronic scattering processes and thereby Hadron dynamics. Regge theory provided a study mathematical framework based upon the theory of the complex angular momentum. It related the high energy behaviour of hadronic scattering processes to the singularities of the scattering amplitude in the complex angular momentum plane. With the advent of QCD, Regge formalism was however shunted to the background. Perhaps, the development of large accelerator centres such as CERN and BNL have led to the detection of large number of hadronic resonances and thus have rekindled interest in the Regge Theory specifically with the aid of Regge trajectories which are traced from these resonances. Theoretical and experimental modelling of Regge theory are now proving to be a successful venture.