Nondipolar asymmetries of photoelectron angular distributions
Journal Article
·
· Physical Review Letters
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
We have measured the nondipolar contribution to the Ar 1{ital s} photoelectron angular distribution over the 30{endash}2000 eV electron-energy range. The nondipolar interaction results in a forward or backward asymmetry with respect to the photon beam. The asymmetry is directed backward near threshold, is symmetric near 230 eV, and becomes increasingly forward directed at higher energies. The measured asymmetries are in excellent agreement with theoretical calculations, which include interference between the electric-dipole and electric-quadrupole photoionization amplitudes. {copyright} {ital 1995 The American Physical Society.}
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 277368
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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