Polarization correlations in radiative cascades following dielectronic recombination of high-Z ions

We investigate the angular and polarization correlations between photons emitted in dielectronic recombination (DR) of initially hydrogen-like heavy ions. Computations are performed based on the density matrix approach and Dirac’s relativistic theory. Special attention is paid to the effects that ar...

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Hauptverfasser: Matula, Oliver (VerfasserIn) , Fritzsche, Stephan (VerfasserIn) , Surzhykov, Andrey (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1 October 2012
In: Journal of physics. B, Atomic, molecular and optical physics
Year: 2012, Jahrgang: 45, Heft: 21
ISSN:1361-6455
DOI:10.1088/0953-4075/45/21/215004
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1088/0953-4075/45/21/215004
Verlag, Volltext: http://stacks.iop.org/0953-4075/45/i=21/a=215004
Volltext
Verfasserangaben:O. Matula, S. Fritzsche and A. Surzhykov

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520 |a We investigate the angular and polarization correlations between photons emitted in dielectronic recombination (DR) of initially hydrogen-like heavy ions. Computations are performed based on the density matrix approach and Dirac’s relativistic theory. Special attention is paid to the effects that arise from non-dipole terms in the expansion of the electron-photon interaction. To illustrate these effects, we present detailed calculations for the radiative cascades in K-LL DR of (initially) hydrogen-like uranium. Our computations show that the angle and polarization properties of the coincidently measured photons are significantly affected by a multipole-mixing between the leading electric-dipole (E1) and magnetic-quadrupole (M2) transitions. 
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