Unified Description of Inclusive and Exclusive Reactions at All Momentum Transfers
R. Blankenbecler and S. J. Brodsky Stanford Linear Accelerator Center Stanford University, Stanford, Calif. 94305 ABSTRACT The constituent interchange model is used to relate large and small momentum transfer reactions, to relate inclusive and exclusive processes, and to predict the form of the inclusive cross section throughout the Peyrou plot. Two important corrections to the triple Regge formula are derived. The first, important at small missing mass, allows a smooth connection to exclusive processes. The second, important at large missing mass, allows a smooth connection to the central region and to the large transverse momentum regime. Simple quark counting rules are given which predict the limiting behavior of Regge trajectories and residue functions, and the powers of Pi and the missing mass dependence of inclusive cross sections. Many experimental consequences of the model are given.