Absolute photoionization cross sections of the Ba ground state in the autoionization region: I. 238-218 nm

K. Maeda, M. Aymar, K. Ueda, H. Chiba, K. Ohmori, Y. Sato, J. B. West, K. J. Ross, K. Ito

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Absolute photoionization cross sections for Ba, measured using a Mach-Zender interferometer, are presented. The present value of the cross section at the ionization threshold, 48.8 ± 6.7 Mb, is in good agreement with previous values. R-matrix calculations combined with MQDT techniques have been carried out to analyse the spectra obtained. The lineshape parameters obtained from the experimental data on the resonance lines are used to establish the identity of perturbing structure: the perturber is identified as the 6p7s3P1 level via the present theoretical calculations.

Original languageEnglish
Pages (from-to)3159-3171
Number of pages13
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume30
Issue number14
DOIs
Publication statusPublished - 1997 Jul 28

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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