Ground-state correlation effects in He-He inelastic scattering
- 21 August 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (12) , 2109-2113
- https://doi.org/10.1088/0022-3700/8/12/021
Abstract
Excitations of one or both atoms to either a 21P or 31P state are considered along with the example of a mixed (21P, 31P) transition. Correlation effects were found to be most important when both atoms were excited, the cross sections being reduced by about a quarter at low impact energies. For the description of angular correlation within He (11S), configurations based on p orbitals were always the most significant thus reflecting the symmetry of the excited states. A brief comment is made regarding the elastic cross sections at large impact energies.Keywords
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