CS and IOS approximations for fine structure transitions in Na(2P)–He(1S) collisions
- 15 November 1980
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 73 (10) , 5115-5121
- https://doi.org/10.1063/1.439989
Abstract
The l‐average CS and IOS approximations are extended to treat fine structure transitions in 2P atom–1S atom scattering. Calculations of degeneracy averaged probabilities and differential cross sections for Na(2P)+He(1S) collisions in the CS and IOS methods agree well with the CC results. The present nonunitarized form of the CS approximation fails to properly predict all of the jm→j′m′ sections and in particular leads to a selection rule forbidding jm→j–m transitions for j=half‐odd integer values.Keywords
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