Measurements on the glory structure in the total cross section of noble gas systems

J.J.H. Van Den Biesen, F.A. Stokvis, E.H. Van Veen and C.J.N. Van Den Meijdenberg

Physica A: Statistical Mechanics and its Applications, 1980, vol. 100, issue 2, 375-396

Abstract: In a crossed supersonic atomic beam apparatus measurements have been performed on the glory structure in the total cross section of the heavy noble gas systems Kr-Kr, Kr-Xe and Xe-Xe. Refinements in the deconvolution procedures are described and the consistency of the results is tested on newly obtained data for the systems Ar-Kr and Kr-Ar. The overall accuracy of the data for all systems is better than 0.7%. Various potentials, proposed in literature, are tested. Agreement with the measured glory structure is only observed for the n(x)-6 and HFD-C type potentials for Ar-Kr and Kr-Kr. n(x)-6 potentials are constructed not only for Kr-Xe and Xe-Xe, but also for the previously studied Ne-systems and Ar-Xe. The result is that the relative total cross sections for all pairs of noble gas atoms (Ne, Ar, Kr and Xe) within experimental error can be described by a consistent set of n(x)-6 potentials. The obtained values for ϵ and rm obey simple combining rules.

Date: 1980
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:100:y:1980:i:2:p:375-396

DOI: 10.1016/0378-4371(80)90127-2

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