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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Bei Herrn Prof. R. Helbing und Herrn Dr. H. D. Dohmann bedanken wir uns für die Überlassung zweier wertvoller Rechenprogramme. Die numerischen Rechnungen wurden auf der IBM 7090 der Gesellschaft für Mathematik und Datenverarbeitung, Bonn/Birlinghoven, durchgeführt.
Der Deutschen Forschungsgemeinschaft sei für ihre Unterstützung gedankt.
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Butz, H.P., Feltgen, R., Pauly, H. et al. Totale effektive Streuquerschnitte für die Streuung von He, HD und D2 an verschiedenen Molekülen. Z. Physik 247, 70–83 (1971). https://doi.org/10.1007/BF01557856
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DOI: https://doi.org/10.1007/BF01557856