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Journal Articles Physical Review A : Atomic, molecular, and optical physics [1990-2015] Year : 2007

Angular correlation between photoelectrons and Auger electrons within scattering theory

Abstract

In this paper we present a single-particle scattering approach for the angular correlation between a photoelectron and the subsequent Auger electron from atomic targets. This method is proposed as an alternative approach with respect to the usual density matrix formalism, since it is more convenient for extension to the solid state case. Such an extension is required by the great progress made in the field of coincidence spectroscopy in condensed matter systems. We derived a tensor expression for the cross section and an equivalent expression in terms of convenient angular functions has been treated for the case of linearly polarized light. Numerical calculations are performed for the L3M2,3M2,3 transition in argon, in the single configuration Dirac-Fock scheme. Results are compared with experimental data for different final angular momentum states of the doubly charged ion and for different kinematical conditions.
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hal-00905553 , version 1 (19-11-2013)

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Fabiana da Pieve, Sergio Di Matteo, Didier Sébilleau, Roberto Gunnella, Giovanni Stefani, et al.. Angular correlation between photoelectrons and Auger electrons within scattering theory. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2007, 75 (5), pp.52704. ⟨10.1103/PHYSREVA.75.052704⟩. ⟨hal-00905553⟩
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