Projection methods for the analysis of molecular-frame photoelectron angular distributions - II Nondipole contributions

A projection method is developed for extracting the nondipole contribution from the molecular frame photoelectron angular distributions of linear molecules. A corresponding convenient parametric form for the angular distributions is derived. The analysis was performed for the N 1s photoionization of the NO molecule a few eV above the ionization threshold. No detectable nordipole contribution was found for the photon energy of 412 eV. (c) 2006 Elsevier B.V. All rights reserved