Spectral moments, collision-induced light scattering

F. Barocchi, M. Neri, and M. Zoppi. Derivation of three-body collision induced light scattering spectral moments for argon, krypton, xenon. Molec. Phys., 34 1391, 1977. 

M. Moraldi. Quantum mechanical spectral moments in collision induced light scattering and collision induced absorption in rare gases at low densities. Chem. Phys., 78 243, 1983. 

M. Zoppi, F. Barocchi, D. Varshneya, M. Neumann, and T. A. Litovitz. Density dependence of the collision induced light scattering spectral moments of argon. Can. J. Phys., 59 1475, 1981. 

J. D. Poll. Spectral moments, presentation at the Conference on Collision-induced Phenomena, Absorption, Light Scattering, and Static Properties, held at Florence, Italy, September 2-5, 1980. 

Theoretical attempts to deal with complexes of more than two atoms (molecules) are scarce. One notable exception is the intercollisional process [303, 304, 306], which models the existing correlations of subsequent collisions. Intercollisional effects are well known in collision-induced absorption, but in OILS not much experimental evidence seems to exist. Three-body spectral moment expressions have been obtained under the assumptions of pairwise interactions [198, 200, 208, 209, 212, 218, 340, 422] see also references in Part II. Multiple scattering will depolarize light and has been considered in several depolarization studies of simple fluids [273, 274, 290, 376]. 

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