On the l z-conserving energy sudden approximation for atom–diatom scattering

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Abstract
The utility of a lz‐conserving approximation, resulting from only energy sudden approximation to the exact space fixed coupled equations, is investigated for atom–diatom scattering. It is shown that the expressions for various transitions probabilities and differential cross sections may be obtained after evaluating relatively small number of lz‐conserving S‐matrix elements. Numerical comparisons with IOS and CC results are given for Ar–N2 and Ar–Tlf for a set of previously well studied parameters.

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