Photoionization cross section confinement resonances

The dependence of confinement resonances on quantum numbers of the ionized subshell nl can be illustrated by the 5-potential model calculated data [34] for the Ne Is and 2s photoionization cross sections from Ne C60, see Figure 5. 

Mb. Note, also, that, away from the threshold, the confinement resonances in er1 <5 and a s emerge at different energies and have different resonance amplitudes. Caution since the data displayed in Figure 5 were obtained in the 5-potential model, the predicted amplitudes of confinement resonances in these photoionization cross sections are, most likely, overestimated, as in the case of Xe C60-... 

In this case, the photoionization cross section possesses no Coulomb confinement resonances. This is because the fullerene cation s potential Vcti(r) seen by an outgoing photoelectron does not exhibit a Coulomb potential barrier (see Figure 10 for z = +5 for illustration purposes). 

---