High-angular-momentum transfer during the autoionization of the 6[ital p][sub 1/2][ital nd] [ital J]=3 states of barium

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.2054· OSTI ID:6214908

Xu, G T; Cooke, W E ^[1]

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1. Department of Physics, University of Southern California, Los Angeles, California 90089-0484 (United States)

We report a measurement of the energy dependence of the branching ratios for autoionization of the (6[ital p][sub 1/2][ital nd5/2])[sub [ital J]=[ital M][ital J]]=3 states of barium into the 5[ital d][sub 3/2][epsilon][ital l] continuum channels by monitoring the population in each [ital m][sub [ital j]] state of the 5[ital d][sub 3/2] residual ion. We use polarization-sensitive laser-induced fluorescence to detect the ion populations. Near the energy of the (6[ital p][sub 1/2][ital ng7/2])[sub [ital J]=3] perturbing resonances, nearly 25% of the doubly excited barium atoms produce the 5[ital d][sub 3/2][epsilon][ital h][sub 9/2] channel, requiring an exchange of at least three units of orbital angular momentum between the excited electrons.

• OSTI ID: 6214908
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:3; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALINE EARTH METALS
ANGULAR MOMENTUM TRANSFER
ATOMIC BEAMS
AUTOIONIZATION
BARIUM
BEAMS
BRANCHING RATIO
DIFFUSION
ELEMENTS
ENERGY DEPENDENCE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORESCENCE
IONIZATION
LASER SPECTROSCOPY
LUMINESCENCE
METALS
MOMENTUM TRANSFER
POLARIZATION
RESONANCE
SPECTROSCOPY