High-Energy Collision Processes in Quantum Electrodynamics. II

We consider here all the high-energy scattering processes $a+b\to a+b$ in quantum electrodynamics, where $a$ and $b$ can be fermions or antifermions. Aside from the photon pole terms, these high-energy amplitudes are shown to be conveniently expressed by the impact factors. The impact factors for the electron, the positron, and the static nucleus are explicitly given.