Springer Online Journal Archives 1860-2000
Abstract The measured velocity dependence of the total scattering cross section for the scattering of He, HD, and D2 by the molecules CH4, N2, O2, NO, CO, HD, and D2 can be described relatively well by a Lennard-Jones-(12.6)-potential. Only for the systems with a CO2 target are large deviations from the L. J.(12,6) predictions found: the measured glory amplitudes are considerably smaller. The deformation of the spherically symmetric potential which must be made in order to fit the CO2 glory pattern is given. Furthermore, the CO2 systems were calculated using an angle-dependent L.J.(12.6)-potential, taking into account only elastic processes. The agreement with the measurements is good.
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