ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Classical and quantum transition probabilities were calculated applying the two (2D) and three (3D) dimensional close-coupled and classical trajectory methods. The collision energy was 0.01 eV and, in this case, there are 12 classical accessible states for Xe−CO2 collisions. It was shown that for Δj≥8 the 2D and 3D transition probabilities agree quantitatively. The state-to-state total cross sections were also compared, in the same level of dimension, and the results showed similar trends. In addition, the hard shape quantum cross sections were compared with the 2D results and showed that the classical turning point cannot be used to obtain the semi-axes of the ellipse, namely A and B. Moreover, the intensity of the hard shape cross sections showed to be different either for the 2D or 3D close coupling calculations. The comparison between the transition probabilities, carried out by the 2D and 3D quantum methods, showed the nature of the 2D results with accurate agreement for large Δj transitions. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.472422
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