Angular correlation patterns in double Auger decay

Grum-Grzhimailo, Alexei N.; Kabachnik, Nikolai M.

doi:10.1088/0953-4075/37/9/009

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Angular correlation patterns in double Auger decay

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Grum-Grzhimailo, Alexei N.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Kabachnik, Nikolai M.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Grum-Grzhimailo, A. N., & Kabachnik, N. M. (2004). Angular correlation patterns in double Auger decay. Journal of Physics B: Atomic, Molecular and Optical Physics, 37(9), 1879-1892. doi:10.1088/0953-4075/37/9/009.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0C84-A

Abstract

The angular distribution of two emitted electrons in the double Auger process in atoms has been theoretically investigated. In particular, the double Auger decay of a 1s vacancy in Ne and a 2p vacancy in Ar is considered. In analogy with double photoionization, we present a convenient parametrization of the angular correlation patterns for all possible angular momenta of the emitted electron pair. As a limiting case we investigate the angular correlations within the shake-off mechanism of the double Auger process. We also consider the influence of initial orientation of the vacancy on the electron angular distributions (circular dichroism).