Interference shake-up effects in the resonant Auger decay of krypton

Lagutin, B. M.; Sukhorukov, V. L.; Petrov, I. D.; Demekhin, Ph. V.; Schartner, K.‐H.; Ehresmann, A.; Schmoranzer, H.

doi:10.1016/j.elspec.2005.01.121

Cited by 3 publications

(1 citation statement)

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“…The most remarkable difference between theory and experiment is concerning the relative cross sections for the population of the 4p 4 np LSJ levels. The difference is particularly disturbing in view of the good agreement between cross sections measured in S7 and computed earlier by Lagutin et al (2003a), Lagutin et al (2005) for the ( 1 D)5p 2 P 3/2 and ( 1 D)5p 2 D 5/2 levels, respectively.…”

Section: Introductionmentioning

confidence: 76%

Fourfold excitations, intra- and inter-shell correlations in the Auger decay of Kr 3d-np resonances

Lagutin¹,

Petrov²,

Sukhorukov³

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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Many-electron effects in the photoionization of Kr near the 3d 9 np resonances were investigated theoretically. Cross sections for the population of the 4p 4 ( 1 D)mp states, their alignment and orientation, and angular distribution of the Auger electrons were computed considering the resonance Auger effect as a coherent process. Probabilities of the radiative cascades following the resonant Auger effect were estimated quantitatively within the transition-array technique. The role of intra-and inter-shell correlations was investigated. Lineshapes computed, taking into account interchannel interaction, are in good agreement with the measured ones. Fourfold excitations of the Kr ground state were proposed to influence the resonance population, alignment and orientation of the 4p 4 np levels.

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Section: Introductionmentioning

confidence: 76%

Fourfold excitations, intra- and inter-shell correlations in the Auger decay of Kr 3d-np resonances

Lagutin¹,

Petrov²,

Sukhorukov³

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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Interference effects in resonant Auger decay of atomic caesium

Niskanen¹,

Nikkinen²,

Heinäsmäki³

et al. 2008

J. Phys. B: At. Mol. Opt. Phys.

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High-resolution electron spectroscopy with synchrotron radiation excitation was used to study the resonant Auger decay of atomic caesium. The resonant Auger spectra with different photon energies across the 4d 5/2 → 6p photoabsorption resonances were measured and the results were compared to the multiconfiguration Dirac-Fock calculations. The high kinetic energy resolution made it possible to observe interference effects between the decay of different overlapping 4d 5/2 → 6p resonant states. The partial electron yield covering transitions to 5p −2 6s6p final ionic states was calculated and observed experimentally. The interference effects were found to average out, resulting in the absorption spectrum.

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