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The differential cross section for ArKr is measured at the energy of E=64.9 meV. Rainbow and fast oscillations are well resolved. The data are directly inverted to the potential by the procedure described in Paper I [J. Chem. Phys. 54, 1923 (1971)] of this series. The potential with the minimum parameters ε=14.4 meV and Rm=3.88 Å is able to reproduce both the measured integral cross section and the second virial coefficient in an excellent manner.
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Buck et al. (1978) studied this question.
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