Electron recombination, photoionization, and scattering via many-electron compound resonances

V.A. Dzuba, V.V. Flambaum, G. F. Gribakin, C. Harabati, M.G. Kozlov

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Abstract

Highly excited eigenstates of atoms and ions with open f shell are chaotic superpositions of thousands, or even millions, of Hartree-Fock determinant states. The interaction between dielectronic and multielectronic configurations leads to the broadening of dielectronic recombination resonances and relative enhancement of photon emission due to opening of thousands of radiative decay channels. The radiative yield is close to 100% for electron energy <1 eV and rapidly decreases for higher energies due to opening of many autoionization channels. The same mechanism predicts suppression of photoionization and relative enhancement of the Raman scattering. Results of our calculations of the recombination rate are in agreement with the experimental data for W20+ and Au25+.
Original languageEnglish
Article number062713
Number of pages6
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Volume88
Issue number6
DOIs
Publication statusPublished - 30 Dec 2013

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