AUTOIONIZATION OF LOW-LYING 5DNG STATES IN BARIUM

R. van Leeuwen, W.M.G. Ubachs, W. Hogervorst

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The autoionizing 5dng J = 1-5 states in barium for n=5-8 were investigated in a two-step pulsed laser atomic beam experiment. The wavefunctions of the 5dng configuration can be well described in a (jl)K-coupled basis. Each 5d(j)ng[K] fine structure state autoionizes into a single 6sepsilonl continuum channel. Autoionization rates, deduced from observed linewidths, are found to be symmetrically lower than values calculated using a single configuration approximation. The fine structure dependence of the autoionization rates, however, can be reproduced in these calculations.
Original languageEnglish
Pages (from-to)3891-3904
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume27
Issue number17
DOIs
Publication statusPublished - 1994

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