THE ANGULAR-DISTRIBUTIONS OF 1S PHOTOELECTRONS FROM SPATIALLY ALIGNED CO USING ANGLE-RESOLVED PEPICO

Results are presented for the angular distributions of electrons from spatially aligned core excited CO using an angle-resolved photoelectron-photoion coincidence technique in the regions of the C and O 1s edges and sigma* resonances. Coincidence measurements were recorded between ions ejected at 0 degrees and 90 degrees with respect to the electric field of the linearly polarized radiation and for photoelectrons ranging from 0 degrees to 90 degrees with respect to the molecular axis. The results show a strong departure from angular distribution measurements made more conventionally; in particular, multiple outgoing partial waves of high angular momentum are seen to make a significant contribution.