Theory of intercollisional interference effects

We extend our previous kinetic theory of intercollisional interference effects to include vibrational perturbations in collisions, and so obtain expressions for the pressure shifts of the interference minima in H2-rare gas mixtures. These shifts are found to be different from those of the isotropic Raman Q lines in the same systems. The use of phase space averages for the analysis of Raman line shifting is discussed.