State dependence of angular correlation patterns in double photoionization

Measurements of the neon , and triple differential cross section (TDCS) for photoionization under equal energy sharing are presented. The experimental data are found to be well reproduced by a model in which the TDCS is parametrized in terms of the relative magnitudes and phases for the and continuum channels and an electron correlation factor. Within this model, the final-state continuum wavefunction is formulated with respect to the contributing LS components, which allows an analysis of the effects of their different symmetries upon angular correlation patterns.