Jets and QCD

The author identifies and sums the diagrams which dominate deep inelastic scattering in QCD (thus reproducing the results of the renormalization group/operator product analysis). The dominant diagrams are generalized ladders when the produced gluons are required to have physical (transverse) polarizations. The final states corresponding to these diagrams consist of two jets. The use of QCD perturbation theory to calculate subdominant three jet contributions is justified. The same technique applies to e+e- annihilation and suggests that it may be possible to describe pp → μ+μ-x and the production of jets of particles at large psub(T) in hadronic collisions using QCD perturbation theory. (Auth.)