Photo-associo-dissociative Ionization in a Rb MOT

POSTER

Abstract

A process, called photo-associo-dissociative ionization (PADI), that is related to both photo-association and Penning ionization is presented. As in photo-association, two colliding atoms are excited together as a quasi-molecule. Unlike photo-association, the final photon in the process then excites the molecule to a dissociative curve above the ionization threshold. Experimental measurements of PADI reaction rates, relative to other cold collision rates, are given and dissociation energy distributions are shown.

Authors

  • Marc Trachy

  • Mudessar Shah

    • J.R. MacDonald Laboratory, Kansas State University, Manhattan, KS 66506

  • Richard Bredy

    • Laboratoir de Spectrometrie ionique et Moleculair (LASIM0URM CNRS) 5579 Universite Claude Bernard Lyon1, 69622 Villeurbanne, France

  • How Camp

    • Institute for Defense Analyses, Alexandria, VA 22311-1882

  • Giorgi Veshapidze

    • J.R. MacDonald Laboratory, Kansas State University, Manhattan, KS 66506

  • Ming-Tie Huang

    • Physics Department, Saginaw Valley State University, University Center, MI

  • Brett DePaola

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