Ground-state correlation effects in He-He inelastic scattering
K E Banyard; B J Szuster; G J Seddon; K E Banyard; Dept. of Phys., Univ. of Leicester, Leicester, UK; B J Szuster; Dept. of Phys., Univ. of Leicester, Leicester, UK; G J Seddon; Dept. of Phys., Univ. of Leicester, Leicester, UK
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1975-08-21
Аннотация:
Excitations of one or both atoms to either a 2<sup>1</sup>P or 3<sup>1</sup>P state are considered along with the example of a mixed (2<sup>1</sup>P, 3<sup>1</sup>P) 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 (1<sup>1</sup>S), 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.
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