ISSN:
1573-935X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Conclusions Double-differential cross sections are very sensitive to details of the molecular interaction. This study of the applicability of the momentum model for dissociative ionization involves comparing such cross sections as calculated exactly by the classical-path method and within the framework of the model. There is good agreement between the model and exact results, which indicates that even at energies close to threshold, where the conditions for the momentum model are generally violated, the model still gives good results. A substantial advantage of the model is that it requires computer run time less by three orders of magnitude than exact path methods. The latter is particularly important in calculating the angular and velocity distributions of the reaction products, when it is necessary to analyze a very large number of paths leading to reaction. The total cross section for these processes is small (about 1 Å2), so the necessary number of classical paths may be 105.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00538159
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