Journal article
Cross sections for photoabsorption and 3p⁴4s,3d satellite production at energies of the doubly excited Ar 3p⁴(³P)4s ²P3/2,1/2 np resonances
Publication Details
Authors: | Kammer, S.; Schartner, K.; Mickat, S.; Schill, R.; Ehresmann, A.; Werner, L.; Klumpp, S.; Schmoranzer, H.; Petrov, I.; Demekhin, P.; Sukhorukov, V. |
Publication year: | 2006 |
Journal: | Journal of Physics B: Atomic, Molecular and Optical Physics |
Pages range : | 2757-2771 |
Volume number: | 39 |
ISSN: | 0953-4075 |
Abstract
The photoabsorption of Ar is studied experimentally and theoretically for energies between 32.5 eV and 33.0 eV. Resonant excitation and autoionization of doubly excited 3p4(0P)4s 2P3/2,1/2 np Rydberg states are observed as dominant mechanism to populate doublet and quartet satellites of the 3p44s, 3d configurations. The perturbation of the Rydberg series by promoter states is reproduced by the calculations. Measured and calculated cross sections for the strong decay channels are in good agreement. A mirror behaviour of the 3s vacancy creation and the satellite production and the influence of the radiative decay of high-lying Rydberg states on the shape of a satellite threshold are manifested.
The photoabsorption of Ar is studied experimentally and theoretically for energies between 32.5 eV and 33.0 eV. Resonant excitation and autoionization of doubly excited 3p4(0P)4s 2P3/2,1/2 np Rydberg states are observed as dominant mechanism to populate doublet and quartet satellites of the 3p44s, 3d configurations. The perturbation of the Rydberg series by promoter states is reproduced by the calculations. Measured and calculated cross sections for the strong decay channels are in good agreement. A mirror behaviour of the 3s vacancy creation and the satellite production and the influence of the radiative decay of high-lying Rydberg states on the shape of a satellite threshold are manifested.
