Perturbative quantum chromodynamics

The effects of the hadronic wave function is incorporated in large momentum transfer exclusive and inclusive reactions. Although it is conventional to treat the quarks, there are important dynamical effects due to hadronic constituent structure which lead to a broader testing ground for QCD. QCD predictions are discussed for exclusive processes and form factors at large momentum transfer in which the short distance behavior and the finite compositeness of the hadronic wave functions play crucial roles. Standard tests of QCD are reviewed, including structure functions of hadrons and photons, jet phenomena, and the QCD corrections to deep inelastic processes. Also discussed are the way the exclusive-inclusive connection works in QCD, the effects of power-low scale-breaking contributions, and the important role of the available energy W in controlling logarithmic scale violations