TY - JOUR AB - Experimental spin-polarization data for the Hg 6s Cooper minimum and dipole-transition amplitudes and phase-shift differences for photoionization of the Hg 5d and 6s shells (eight channels) in the photon-energy region from the 2D3/2 threshold up to 35 eV (kinetic energies from 0 to 20 eV) are presented and compared with new relativistic random-phase approximation calculations. The data were evaluated from an experimental data set, quantum mechanically complete, consisting of cross-section and photoelectron spin-polarization data. For the 5d subshells the results show strong interchannel coupling between the outgoing p and f continuum channels. The results for Hg 6s could be used for an independent determination of the photoelectron angular distribution parameter [Beta] in the Cooper-minimum region. This region is shown to be perturbed by numerous two-electron excitations, which might be a possible explanation for the controversy on its location. DA - 1990 DO - 10.1103/PhysRevA.42.2603 LA - eng IS - 5 M2 - 2603 PY - 1990 SN - 1050-2947 SP - 2603-2613 T2 - Physical Review, A: Atomic, Molecular and Optical Physics TI - Hg 5d and 6s: Multichannel quantum-defect analysis of experimental data UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-17760348 Y2 - 2024-11-22T05:51:25 ER -