Hot Water Molecules from Dissociative Recombination of D3O+ with Cold Electrons

H. Buhr, J. Stützel, M. B. Mendes, O. Novotný, D. Schwalm, M. H. Berg, D. Bing, M. Grieser, O. Heber, C. Krantz, S. Menk, S. Novotny, D. A. Orlov, A. Petrignani, M. L. Rappaport, R. Repnow, D. Zajfman, and A. Wolf
Phys. Rev. Lett. 105, 103202 – Published 3 September 2010

Abstract

Individual product channels in the dissociative recombination of deuterated hydronium ions and cold electrons are studied in an ion storage ring by velocity imaging using spatial and mass-sensitive detection of the neutral reaction fragments. Initial and final molecular excitation are analyzed, finding the outgoing water molecules to carry internal excitation of more than 3 eV in 90% of the recombination events. Initial rotation is found to be substantial and in three-body breakup strongly asymmetric energy repartition among the deuterium products is enhanced for hot parent ions.

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  • Received 27 April 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.103202

© 2010 The American Physical Society

Authors & Affiliations

H. Buhr1,2,*, J. Stützel1, M. B. Mendes1, O. Novotný1,3, D. Schwalm1,2, M. H. Berg1, D. Bing1, M. Grieser1, O. Heber2, C. Krantz1, S. Menk1, S. Novotny1, D. A. Orlov1, A. Petrignani1, M. L. Rappaport2, R. Repnow1, D. Zajfman2, and A. Wolf1

  • 1Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
  • 2Weizmann Institute of Science, P.O. Box 26, 76100 Rehovot, Israel
  • 3Columbia Astrophysics Laboratory, MC5247, 550 West 120th Street, New York, New York 10027, USA

  • *Corresponding author. henrik.buhr@mpi-hd.mpg.de

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Vol. 105, Iss. 10 — 3 September 2010

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