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

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

doi:10.1103/PhysRevA.88.062713

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

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

School of Mathematics and Physics

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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 language	English
Article number	062713
Number of pages	6
Journal	Physical Review A (Atomic, Molecular, and Optical Physics)
Volume	88
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.88.062713
Publication status	Published - 30 Dec 2013

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Electron recombination, photoionization, and scattering via many-electron compound resonances
©2013 American Physical Society. This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
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Cite this

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

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+.",

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T1 - Electron recombination, photoionization, and scattering via many-electron compound resonances

AU - Dzuba, V.A.

AU - Flambaum, V.V.

AU - Gribakin, G. F.

AU - Harabati, C.

AU - Kozlov, M.G.

PY - 2013/12/30

Y1 - 2013/12/30

N2 - 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+.

AB - 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+.

U2 - 10.1103/PhysRevA.88.062713

DO - 10.1103/PhysRevA.88.062713

M3 - Article

VL - 88

JO - Physical Review A (Atomic, Molecular, and Optical Physics)

JF - Physical Review A (Atomic, Molecular, and Optical Physics)

SN - 1050-2947

IS - 6

M1 - 062713

ER -

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

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