Isotope shift of the 1s2 p 3P0-1s2s 1S0 level splitting in heavy He-like ions

• Verfasst von: Ferro, Fabrizio [VerfasserIn]
• Verfasst von: Artemyev, Anton [VerfasserIn]
• Verfasst von: Stöhlker, Thomas [VerfasserIn]
• Verfasst von: Surzhykov, Andrey [VerfasserIn]
• Titel: Isotope shift of the 1s2 p 3P0-1s2s 1S0 level splitting in heavy He-like ions
• Titelzusatz: implications for atomic parity-nonconservation studies
• Verf.angabe: Fabrizio Ferro, Anton Artemyev, Thomas Stöhlker, and Andrey Surzhykov
• E-Jahr: 2010
• Jahr: 7 June 2010
• Umfang: 6 S.
• Illustrationen: Diagramme
• Fussnoten: Im Titel ist die Ziffer 3 bei 3P0 und die Ziffer 1 bei 1S0 jeweils hochgestellt, die Ziffer 0 überall tiefgestellt ; Gesehen am 18.12.2023
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2010
• Band/Heft Quelle: 81(2010), 6 vom: Juni, Artikel-ID 062503, Seite 1-6
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.81.062503
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1876275057

Abstract

Heavy He-like ions are considered to be promising candidates for atomic parity-nonconservation (PNC) studies, thanks to their relatively simple atomic structure and the significant mixing between the almost degenerate (for the atomic numbers Z~64 and Z~91) opposite-parity levels 1s2s1S0 and 1s2p3P0. A number of experiments exploiting this level mixing have been proposed, and their implementation requires a precise knowledge of the 23P0-21S0 energy splitting for different nuclear charges and isotopes. In this paper we performed a theoretical analysis of the level splitting, employing the relativistic many-body perturbation theory and including QED corrections for all isotopes in the intervals 54⩽Z⩽71 and 86⩽Z⩽93. Possible candidates for future experimental PNC studies are discussed.