Light shifts and electric dipole matrix elements in Ba+ and Ra+

B. K. Sahoo*, L. W. Wansbeek, K. Jungmann, R. G. E. Timmermans

*Corresponding author for this work

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21 Citations (Scopus)


We present an analysis of the recent measurements of the light-shift ratio in Ba+ at two different wavelengths that enables us to reduce the uncertainty of the largest E1 dipole matrix elements of Ba+. These matrix elements are, for instance, of interest for the proposed parity-nonconservation (PNC) experiment in Ba+. We show that a new measurement of the light-shift ratio in Ba+ at a wavelength of 350 nm could further reduce the uncertainty of the (for PNC studies most important) <5D(3/2)parallel to parallel to D parallel to parallel to 6P(1/2)> matrix element. Finally, as groundwork for the planned PNC experiment at KVI, we present relativistic coupled-cluster calculations of the E1 matrix elements for Ra+, and investigate the potential of similar light-shift ratio measurements in this ion.

Original languageEnglish
Article number052512
Number of pages8
JournalPhysical Review A
Issue number5
Publication statusPublished - May-2009


  • atomic moments
  • barium
  • coupled cluster calculations
  • positive ions
  • radium
  • relativistic corrections
  • spectral line shift
  • ultraviolet spectra
  • ION
  • SR+

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