For 10 points, Raman and Compton are types of what process in which particles interact and bounce off at some angle?
This process is represented by the S-matrix in quantum mechanics and when it involves spherical particles it is described by Mie theory.  The cross section for one of these processes is given by the Klein Nishina formula.  One inelastic process of this type used in spectroscopy generates (*) stokes and anti-stokes lines, while an elastic process of this type with a dependence on the fourth power of wavelength is responsible for the sky's blue color and is named for Rayleigh.  For 10 points, Raman and Compton are types of what process in which particles interact and bounce off at some angle?
This process is represented by the S-matrix in quantum mechanics and when it involves spherical particles it is described by Mie theory.  
{Scattering} [accept {scattering} of photons of light or electromagnetic waves]