Strong nondipole effect created by multielectron correlation in 5s photoionization of xenon

Journal Article · Wed Jan 01 04:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.012712· OSTI ID:20634126

Ricz, S; Koever, A; Varga, D; Ricsoka, T ^[1]; Sankari, R; Jurvansuu, M; Nikkinen, J; Aksela, H; Aksela, S ^[2]

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1. Institute of Nuclear Research of Hungarian Academy of Science, P.O. Box 51, Debrecen H-4001 (Hungary)
2. Department of Physical Sciences, University of Oulu, P.O. Box 3000, Oulu 90014 (Finland)

The angular distribution of the Xe 5s photoelectrons was measured in the 90-225 eV photon energy range using linearly polarized synchrotron radiation. The experimentally determined angular distribution parameters were compared with theoretical values obtained from calculations based on the random-phase approximation and the time-dependent density-functional theory. Experiment shows that the dipole ({beta}) and nondipole ({gamma}) parameters vary strongly as a function of the photon energy, in accordance with calculations that account for the interchannel coupling. Nondipole effects observed clearly in experiment confirm the role of multielectron correlation in describing the 5s photoionization of Xe far from the ionization threshold.

• OSTI ID: 20634126
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
CORRELATIONS
COUPLING
DENSITY FUNCTIONAL METHOD
DIPOLES
EV RANGE
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PHOTONS
RANDOM PHASE APPROXIMATION
SYNCHROTRON RADIATION
TIME DEPENDENCE
XENON