4Q03 Lecture 08: This lecture continues to convert Fermi's Golden Rule to continuum normalization, doing so for a simple absorption process and then for a general scattering process, defining along the way the cross section for 2-body scattering. The general formula for scattering is used to derive the equilibrium Bose-Einstein and Fermi-Dirac distributions under the assumption of detailed balance (reactions run at the same rate forward and backwards).