Comparative study of the electron-atom and positron-atom bremsstrahlung

Fully relativistic treatment of the electron-atom and positron-atom bremsstrahlung is reported. The calculation is based on the partial-wave expansion of the Dirac scattering states in an external atomic field. A comparison of the electron and positron bremsstrahlung is presented for the single and...

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Hauptverfasser: Yerokhin, Vladimir (VerfasserIn) , Surzhykov, Andrey (VerfasserIn) , Tashenov, Stanislav (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2012
In: Physical review. A, Atomic, molecular, and optical physics
Year: 2012, Jahrgang: 86, Heft: 3
ISSN:1094-1622
DOI:10.1103/PhysRevA.86.032708
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevA.86.032708
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.86.032708
Volltext
Verfasserangaben:V.A. Yerokhin, A. Surzhykov, R. Märtin, S. Tashenov, and G. Weber
Beschreibung
Zusammenfassung:Fully relativistic treatment of the electron-atom and positron-atom bremsstrahlung is reported. The calculation is based on the partial-wave expansion of the Dirac scattering states in an external atomic field. A comparison of the electron and positron bremsstrahlung is presented for the single and double differential cross sections and the Stokes parameters of the emitted photon. It is demonstrated that the electron-positron symmetry of the bremsstrahlung spectra, which is nearly exact in the nonrelativistic regime, is to a large extent removed by the relativistic effects.
Beschreibung:Published 19 September 2012
Gesehen am 27.06.2018
Beschreibung:Online Resource
ISSN:1094-1622
DOI:10.1103/PhysRevA.86.032708