Effect of Breit interaction on resonant excitation of highly charged heavy ions*
Institut für Theoretische Physik der Justus-Liebig-Universität,
Revised: 29 September 1999
Published online: 15 April 2000
Resonant excitation or resonant electron scattering is a two step process in which Auger rates are involved in both steps. First an electron is captured into a bound state and a bound electron is excited (inverse Auger effect). Then an Auger transition leads to the emission of the electron from the ion. The corresponding cross-sections are very sensitive to the Auger rates and allow a detailed study of the Breit interaction which is a current-current contribution to the static electron-electron interaction. The contribution of the Breit interaction to the cross-section of resonant excitation on hydrogen-like uranium ions is discussed and shown that it is roughly twice as large as in the case of dielectronic recombination.
PACS: 32.80.Hd – Auger effect and inner-shell excitation or ionization / 32.80.Dz – Autoionization
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000