Electron Retroaction in the Dissociation of fixed in Space H<sub>2</sub> and D<sub>2 </sub>Molecules

POSTER

Abstract

Experiments employing the COLTRIMS technique in combination with VUV radiation from the Advanced Light Source (ALS) synchrotron that single-ionizes and dissociates hydrogen and deuterium molecules just above threshold have been carried out at several photon energies. We report on the asymmetry of the molecular frame photoelectron angular distribution (MFPAD) due to the post-photoionization interaction between the low-energy photoelectron and the parent molecular ion, which is known as the electron retroaction effect. We investigate the dependence of this asymmetry on the angle between the molecular axis and the polarization direction of the synchrotron radiation. We also report on how these MFPADs change with photoelectron energy.

*This research was supported by U.S DOE, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences

Presenters

  • Spenser J Burrows

    • Auburn University

Authors

  • Guillaume M Laurent

    • Auburn University

  • Spenser J Burrows

    • Auburn University

  • Itzik Ben-Itzhak

    • Kansas State University
    • J.R. Macdonald Laboratory, Physics, Kansas State University
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA

  • Benjamin Berry

    • Kansas State University

  • Elio G Champenois

    • University of California, Berkeley

  • Reinhard Doerner

    • Goethe University Frankfurt

  • Jan Dvorak

    • Lawrence Berkeley National Laboratory

  • Averell S Gatton

    • Auburn University

  • Wael Iskander

    • Lawrence Berkeley National Laboratory

  • Kirk A Larsen

    • University of California, Berkeley

  • Robert R Lucchese

    • Lawrence Berkeley National Laboratory
    • LBL
    • Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA

  • William McCurdy

    • University of California, Davis
    • U. C. Davis and Lawrence Berkeley National Laboratory

  • Daniel Metz

    • Goethe University Frankfurt

  • Thomas N Rescigno

    • Lawrence Berkeley National Laboratory
    • Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA

  • Hendrik Sann

    • Goethe University Frankfurt

  • Travis Severt

    • Kansas State University
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA

  • Niranjan Shivaram

    • Purdue University

  • Daniel S Slaughter

    • Lawrence Berkeley National Laboratory
    • Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA

  • Miriam Weller

    • Goethe University Frankfurt

  • Joshua B Williams

    • University of Nevada, Reno
    • Department of Physics, University of Nevada, Reno, NV 89557 USA

  • Thorsten Weber

    • Lawrence Berkeley National Laboratory