Term dependence of nondipole valence s-photoelectron angular distributions from half-filled shell atoms

ORAL

Abstract

To date, nondipole photoelectron angular distributions from open-shell atoms have remained poorly studied because of their complexity in both experimental and theoretical studies. To remedy this situation, we have initiated a theoretical research program for studying nondipole effects in these atoms. The aim of this presentation is to demonstrate a dramatic dependence of nondipole valence s-photoelectron angular distributions on final state terms of the open-shell atom-remainder. It turns out that electron correlation affects these nondipole angular distributions crucially but much differently depending on a final state term of the residual ion. As a result, there are marked differences between nondipole contributions to the valence s-photoelectron angular distributions ``belonging'' to different final state terms of the ion-remainder. This is demonstrated by our calculations for the 4s photoelectrons from the Mn(3d$^{5}$4s$^{2}$,$^{6}S$) atom for the 4s,$^{5}S$ and 4s,$^{7}S$ final state terms of the ion-remainder. Calculations were performed in a ``spin-polarized'' random-phase-approximation with exchange (SP RPAE) framework.

–

Authors

  • Valeriy Dolmatov

  • Student Workshop

    Physics, Stony Brook University, NY 11794-3800 USA, Physics Department, Western Michigan University, Kalamazoo, MI, 49008, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, R. Bo\v{s}kovi\'{c} Institute, Zagreb, Croatia, Bose Institute, Kolkata, India, U. Wisconsin, Argonne National Laboratory, U. Kentucky, Kansas State University, Rice University, Oak Ridge National Laboratory, University of Tennessee, Vienna University of Technology, University of Tennessee, Vienna University of Technology, University of North Alabama, Florence, AL, University of Connecticut, LANL, Auburn University, Voronezh State University, Russia, Oak Ridge National Laboratory, Rollins College, ATOMKI, Debrecen, GANIL, Caen, Stony Brook University, NY 11794-3800 USA, Hefei National Lab \& Dept of Chemical physics, Univ of Sci \& Tech of China, Dept of Earth \& Environ Sci, Univ of Illinois at Chicago, EFI \& Dept of Geophys. Sci., UofC, Chem Div, ANL, Phys Div, ANL, Phys Div, Argonne National Lab (ANL) \& Enrico Fermi Institute (EFI), Univ of Chicago (UofC), Department of Physics, University of Turku, 20014 Turku, Finland, Clarendon Laboratory, Oxford, SNL, Univ. Paris Sud, Orsay

  • Steven Manson

    Georgia State University, Georgia State University, Atlanta, GA