Nondipolar photoelectron angular distributions
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States of America)
The deviations of photoelectron angular distributions from the simple, highly symmetric shapes predicted within the electric-dipole approximation are investigated. The admixture of an electric-quadrupole component in the photon-atom interaction causes an asymmetry in the angular distribution with respect to the direction of photon propagation. The reported measurement of the angular distributions of argon 1s, krypton 2s, and krypton 2p photoemission within 2{endash}3 keV above their respective thresholds reveal pronounced asymmetries which are present even at low electron kinetic energies. The measured asymmetry parameters are in good agreement with recent predictions from nonrelativistic calculations. {copyright} {ital 1997 American Institute of Physics.}
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 531680
- Report Number(s):
- CONF-9609283--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 389; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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