Interference effects in the angular distribution of Ar 3p photoelectrons across the 2p{yields}ns/md resonances

Journal Article · Fri Jul 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.014701· OSTI ID:20718449

Ricz, S; Ricsoka, T; Koever, A; Varga, D ^[1]; Nikkinen, J; Sankari, R; Aksela, H; Aksela, S ^[2]; Fritzsche, S ^[3]

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1. Institute of Nuclear Research of Hungarian Academy of Science, Debrecen, P.O. Box 51, H-4001 (Hungary)
2. Department of Physical Sciences, University of Oulu, P.O. Box 3000, 90014 University of Oulu (Finland)
3. Department of Physics, University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel (Germany)

The angular distribution of Ar 3p photoelectrons was measured in the 90-330 eV photon energy region using linearly polarized synchrotron radiation. Emphasis was placed in particular on the 2p{yields}ns/md resonances for which the dipole and the nondipole angular anisotropy parameters were measured and compared with the recent theoretical predictions. The present multiconfiguration Dirac-Fock calculation including the direct photoionization was found to reproduce the observed structures in the angular anisotropy parameters.

• OSTI ID: 20718449
• Journal Information: Physical Review. A, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevA.72.014701; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ANISOTROPY
ARGON
DIPOLES
EV RANGE
INTERFERENCE
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PHOTONS
RESONANCE
SYNCHROTRON RADIATION