Isotopically Resolved Photoelectron Imaging Unravels Complex Atomic Autoionization Dynamics by Two-Color Resonant Ionization

P. O’Keeffe, E. V. Gryzlova, D. Cubaynes, G. A. Garcia, L. Nahon, A. N. Grum-Grzhimailo, and M. Meyer

Phys. Rev. Lett. 111, 243002 – Published 9 December 2013

Abstract

Angle-resolved electron spectroscopy in coincidence with high-resolution mass spectroscopy has been applied to study two-color resonant photoionization in atomic xenon. Separation of different isotopes enabled us to extract results for the electronic dynamics free from depolarization effects, which are generally introduced by the coupling of the electronic and nuclear angular momenta. The concerted experimental and theoretical analysis of the photoelectron angular distributions in the region of an autoionizing resonance emphasizes the strong sensitivity of the observed structures to the fine details of the treatment of the underlying dynamics.

Received 26 September 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.243002

Authors & Affiliations

P. O’Keeffe¹, E. V. Gryzlova², D. Cubaynes³, G. A. Garcia⁴, L. Nahon⁴, A. N. Grum-Grzhimailo², and M. Meyer⁵

¹CNR Istituto di Metodologie Inorganiche e dei Plasmi, CP10, I-00016 Monterotondo Scalo, Italy
²Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
³ISMO, CNRS/Université Paris-Sud, Bâtiment 350, F-91405 Orsay Cedex, France
⁴Synchrotron SOLEIL, L’Orme des Merisiers, St. Aubin, B.P. 48, 91192 Gif sur Yvette, France
⁵European XFEL GmbH, Albert-Einstein-Ring 19, D-22761 Hamburg, Germany

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Vol. 111, Iss. 24 — 13 December 2013

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