Two Mechanisms for Depolarized Light Scattering from Gaseous Argon

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Abstract
Experimental evidence is presented that the observed depolarized scattering of light from gaseous argon is due to two processes. It is suggested that the broader and weaker component with intensity proportional to the square of the density is due to the "electronic overlap effect" proposed by Levine and Birnbaum and that the sharper and less density-dependent component first observed by McTague and Birnbaum is due to the "dipole-induced dipole" effect proposed by Thibeau, Oksengorn, and Vodar.