Autoionization studies of the 1s2s2p 4P5/2 levels in He-, Li i, and Be ii

Summary, in English

Autoionization rates of the 1s2s2p4P5/2 level are computed for He-, Li I, and Be II, using the golden-rule formalism in the multiconfiguration Hartree-Fock approximation. The main objective is to clarify ambiguities concerning the metastable 4P5/2 component in He-, whose lifetimes differ significantly in various works. The present calculations reveal a much shorter lifetime, 345 mus, than predicted in earlier theoretical works. Our result for He- is in perfect agreement with recent measurements, and for Li I and Be II we agree well with other theoretical predictions.

• Författare: G Miecznik; Tomas Brage; CF Fischer
• Publiceringsår: 1993
• Språk: Engelska
• Sidor: 3718-3723
• Publikation/Tidskrift/Serie: Physical Review A (Atomic, Molecular and Optical Physics)
• Volym: 47
• Issue: 5
• Länkar: http://dx.doi.org/10.1103/PhysRevA.47.3718
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Physical Society
• Ämne: Physical Sciences
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1050-2947