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Title: Dominance of the Breit Interaction in the X-Ray Emission of Highly Charged Ions Following Dielectronic Recombination

Journal Article · · Physical Review Letters
 [1];  [1];  [1]
  1. GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany)

The Breit interaction typically appears as a--more or less small--correction to the Coulomb repulsion acting among the electrons. We here propose two x-ray measurements on the angular distribution and linear polarization of the 1s2s{sup 2}2p{sub 1/2} J=1->1s{sup 2}2s{sup 2} J=0 electric-dipole radiation of high-Z, beryllium-like ions, following the resonant electron capture into initially lithium-like ions, for which the Breit interaction strongly dominates the Coulomb repulsion and leads to a qualitative change in the expected x-ray emission pattern. The proposed measurements are feasible with present-day x-ray detectors and may serve a stringent test on relativistic corrections to the electron-electron interaction in the presence of strong fields.

OSTI ID:
21364685
Journal Information:
Physical Review Letters, Vol. 103, Issue 11; Other Information: DOI: 10.1103/PhysRevLett.103.113001; (c) 2009 The American Physical Society; ISSN 0031-9007
Country of Publication:
United States
Language:
English