ANGULAR ANISOTROPY OF THE KR 3D(3 2,5/2)(-1)5P-]4P(-2)5P RESONANT AUGER DECAY STUDIED BY UTILIZING THE AUGER RESONANT RAMAN EFFECT/

The anisotropy of the resonant Auger decay of the photoexcited Kr 3d(3 /2,5/2)(-1)5p states has been studied by comparing the new high-resolu tion experimental results with the multiconfiguration Dirac-Fock calcu lations. The measurements were made with very high photon and electron energy resolutions in the Auger resonant Raman mode giving ''subnatur al'' linewidths of similar to 35meV, which has enabled us to resolve t he fine structures in detail. Comparison with high-quality experimenta l results allows us to confirm the roles of exchange interaction as we ll as initial- and final-state interactions in the theoretical descrip tion of the angular anisotropy of the resonant Auger transitions.