REGGE BEHAVIOR FROM AN ENVIRONMENTALLY FRIENDLY RENORMALIZATION-GROUP

The asymptotic behaviour of cubic field theories is investigated in th e Regge Limit using the techniques of environmentally friendly renorma lization, environmentally friendly in the present context meaning asym metric in its momentum dependence. In particular we consider the cross over between large and small energies at fixed momentum transfer for a model scalar theory of the type phi(2) psi. The asymptotic forms of t he crossover scaling functions are exhibited for all two particle scat tering processes in this channel to one loop in a renormalization grou p improved perturbation theory. (C) 1997 Published by Elsevier Science B.V.