Abstract

The anisotropy of the resonant Auger decay of the photoexcited Kr 3${\mathit{d}}_{3/2,5/2}^{\mathrm{\ensuremath{-}}1}$5p states has been studied by comparing the new high-resolution experimental results with the multiconfiguration Dirac-Fock calculations. The measurements were made with very high photon and electron energy resolutions in the Auger resonant Raman mode giving ``subnatural'' linewidths of \ensuremath{\sim} 35 meV, which has enabled us to resolve the fine structures in detail. Comparison with high-quality experimental results allows us to confirm the roles of exchange interaction as well as initial- and final-state interactions in the theoretical description of the angular anisotropy of the resonant Auger transitions. \textcopyright{} 1996 The American Physical Society.

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