The Kr M4,5N1N2,31P1 Auger decay: measurement of the transferred spin polarization and analysis of Auger amplitudes

The angular distribution of the transferred spin polarization of Kr M4,5N1N2,31P1 Auger electrons after primary ionization with circularly polarized light has been measured and the intrinsic parameters δ1 and ξ1 have been determined from experimental results. The explicit equation interconnecting the intrinsic parameters for Auger decay from a (d5/2)-1 core hole has been derived and is used for a detailed analysis of the transitions in terms of Auger amplitude ratios and phase shift differences. The results indicate that the final ionic state is well described by a 1P symmetry. Additional constraints imposed on the intrinsic parameters for singlet states prevent unambiguous determination of Auger amplitudes from experiment even in the limiting case of pure LS coupling. (author)