High-Energy Production Processes in Quantum Electrodynamics

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Abstract
Production amplitudes in quantum electrodynamics are studied in the high-energy limit. In particular, we calculate the impact factors for pair production and for bremsstrahlung explicitly. Numerous production amplitudes are then obtained in terms of these two impact factors. The method we use is the one of impact diagrams, which is applicable to all Feynman diagrams at high energies.