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

Research output: Contribution to journalArticle

Abstract

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.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Physical Sciences
Original languageEnglish
Pages (from-to)3718-3723
JournalPhysical Review A (Atomic, Molecular and Optical Physics)
Volume47
Issue number5
Publication statusPublished - 1993
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Physics, science (011013100)