Two-photon decay in strong central fields observed for the case of He-like gold |
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| Authors: | H. W. Sch ffer, P. H. Mokler, R. W. Dunford, C. Kozhuharov, A. Kr mer, A. E. Livingston, T. Ludziejewski, H. -T. Prinz, P. Rymuza, L. Sarkadi, Z. Stachura, Th. St hlker, P. Swiat,A. Warczak |
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| Affiliation: | a Gesellschaft für Schwerionenforschung, 64291 Darmstadt, Germany;b I. Physikalisches Institut, Justus-Liebig-Universität, 35392 Giessen, Germany;c Chemistry Divison, Argonne Nat. Lab., Argonne, Il 60439, USA;d Institut für Kernphysik, University of Frankfurt, 60486 Frankfurt, Germany;e Notre Dame University, Notre Dame (IN 46556), USA;f Institute for Nuclear Studies, 05-400 !["Image"]("http://www.sciencedirect.com/cache/MiamiImageURL/B6TVM-3XNK7V3-18-1/0?wchp=dGLbVzW-zSkzk" "\"Image\"") wierk, Poland;g Institute for Nuclear Research, (4001) Debrecen, Hungary;h Institute of Nuclear Physics, 31-342 Cracow, Poland;i Institute of Physics, Jagiellonian University, 30-059 Cracow, Poland |
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| Abstract: | The photon energy differential shape of the second order matrix element for the two-photon (2E1) decay of the 1s2s1S0 level in He-like gold has been measured. The results are in agreement with a recent fully relativistic calculation. The corresponding 2E1 matrix element deviates from those in lighter He-like systems due to the strong central field in a heavy two-electron ion. |
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| Keywords: | PACS classification codes: 32.70.Fw 31.30.Jv 31.10.+z 32.30.Rj |
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