Abstract
Solvent shifts of the vacuum ultraviolet spectrum of xenon in gaseous argon are used to obtain the excited-state Ar+Xe(3P1) potential. This potential is used to calculate the absorption and emission shifts of xenon in liquid argon, and satisfactory agreement with experiment is obtained. A new approximate scaling method is proposed to obtain the radial distribution functionf (rdf) for the mixture. This scaling uses readily available rdf's for hard sphere mixtures and pure fluids to obtain the rdf of the mixture. The emission and absorption shifts in the gas are sensitive to different regions of the excited-state potential, so that by combining observed shifts in absorption and emission one should be able to obtain accurate excited-state potentials.
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