Fixed-energy inversion of 5-eV e-Xe-atom scattering - art. no. 012707

Fixed-energy inverse scattering theory has been used to define central and spin-orbit Schrodinger potentials for the scattering of 5-eV polarized elec trons from Xe atoms. The results an typical for a range of such data; inclu ding energies above threshold when the potentials become complex. The phase shifts obtained from an analysis of the measured differential cross sectio n and analyzing power were used as input data. Both semiclassical (WKB) and fully quantal inversion methods were used to extract central and spin-orbi t interactions. The analysis shows that information additional to the set o f input phase shifts extracted from these (and similar) data may be needed to ascertain physical potentials.