Comparison of calculated Kr⁺ PI cross section to the experimental measurements (dotted line) of Bizau et al. (2011). The dashed line shows our original result before comparison to experiment, while the solid line shows the theoretical cross section after optimization to better reproduce the Bizau et al. (2011) results. In each case, the theoretical curves are statistically-weighted linear combinations of the cross sections from each of the two states in the ground configuration. The calculated cross sections were convolved with a Gaussian of 30 meV to approximate the average resolution of the Bizau et al. (2011) measurements.