An extensive study of the 4${\mathit{f}}_{5/2}$ photoionization in xenon is presented which allows, through the observation of the coincident ${\mathit{N}}_{5\mathrm{-}}$${\mathrm{O}}_{23}$${\mathrm{O}}_{23}$ ${}_{}{}^1{}_{}{}^{}$${\mathit{S}}_0$ Auger electron, the establishment of the first complete fragmentation pattern for two-electron emission with information on the momenta and the spin projections of both electrons.

• Received 15 July 1991

DOI:https://doi.org/10.1103/PhysRevLett.67.1848