Photoionization of open-shell nitrogen confined in C₆₀

Endofullerene photoionization of open-shell N@C₆₀ is investigated using a coupled-channel, correlated R-matrix approach with additional modifications for a finite spherical-shell fullerene potential. Particular focus is on the initial-state dependence of the photoionization cross section. Comparisons show significant differences between the 1s ²2s ²2p ³(⁴S) initial state and the metastable ²D and ²P states, as well as strong confinement oscillations. (paper)