Inclusiveand Exclqsive Processes at Large Transversemomentum: Acompendium*

The primary goal of this talk will be to summarize in a unified way the predictions of the constituent interchange theory192 (CIM) of high transverse momenta phenomena. A unified approach is possible due to the nature of the theory to be described in which predictions for all such processes are determined by a few simple assumptions. Success in the exclusive realm of hadron physics must go hand in hand with success in the inclusive realm. Most derivations and experimental comparisons will be omitted except where difficulties may be present. in varying degrees of collaboration. We begin with the na&ve assumption that mesons are compo_sed of a quark and antiquark + qq pairs while baryons contain 3q + qq pairs. Next we assume3 that the quark-quark interaction is characterized by a) dimensionless coupling constant(s) b) absence of anomalous dimensions both for quark quark scattering and for the hadronic quark wave functions. (Assumption b) has not been rigorously demonstrated in any field theory.) These assumptions, combined with assumed dominance of the quark interchange type of process1 in hadronic reactions, determine completely the behavior of a very large number cf hadronic and electromagnetic processes. The form factor of an N quark state is predicted to behave asymp-totically as. 3 , 4 F(t) a 1 tN-l 0) This is illustrated for the qsmeson state in a vector gluon-fermion quark theory in Fig. 1. II. Fig. 1. Pion form factor 2 at large q .