Hyperfine-induced effects on the linear polarization of Kα1 emission from heliumlike ions

• Verfasst von: Surzhykov, Andrey [VerfasserIn]
• Verfasst von: Litvinov, Yuri A. [VerfasserIn]
• Verfasst von: Stöhlker, Thomas [VerfasserIn]
• Verfasst von: Fritzsche, Stephan [VerfasserIn]
• Titel: Hyperfine-induced effects on the linear polarization of Kα1 emission from heliumlike ions
• Verf.angabe: Andrey Surzhykov, Yuri Litvinov, Thomas Stöhlker, and Stephan Fritzsche
• E-Jahr: 2013
• Jahr: 13 May 2013
• Umfang: 7 S.
• Fussnoten: Gesehen am 27.01.2022 ; Im Titel ist die Ziffer "1" tiefgestellt
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2013
• Band/Heft Quelle: 87(2013), 5, Artikel-ID 052507, Seite 1-7
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.87.052507
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1787295079

Abstract

The linear polarization of the characteristic photon emission from few-electron ions is studied for its sensitivity with regard to the nuclear spin and magnetic moment of the ions. Special attention is paid, in particular, to the Kα1 (1s2p3/21,3P1,2→1s21S0) decay of selected heliumlike ions following the radiative electron capture into initially hydrogenlike species. Based on the density matrix theory, a unified description is developed that includes both the many-electron and hyperfine interactions as well as the multipole-mixing effects arising from the expansion of the radiation field. It is shown that the polarization of the Kα1 line can be significantly affected by the mutipole mixing between the leading M2 and hyperfine-induced E1 components of 1s2p3P2,Fi→1s21S0,Ff transitions. This E1-M2 mixing strongly depends on the nuclear properties of the considered isotopes and can be addressed experimentally at existing heavy-ion storage rings.