Probing final-state interactions in the photodetachment from OH

Aravind, G. ; Gupta, A. K. ; Krishnamurthy, M. ; Krishnakumar, E. (2007) Probing final-state interactions in the photodetachment from OH Physical Review A, 76 (4). 042714_1-042714_6. ISSN 1050-2947

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Angular distributions of photoelectrons in the photodetachment from OH(1Σ+)+hv→OH(2Πi;∪=0)+e process were measured at four discrete wavelengths (440-266 nm) using a crossed anion-laser interaction and a linear time-of-flight photoelectron spectrometer. The asymmetry parameters determined from the measured angular distributions at these wavelengths were fitted to a model that accounts for the dipole interaction between the final-state particles and to a free-electron form of the Cooper-Zare model. The observed spectral dependence of the asymmetry parameter shows no significant influence of the dipole interaction. The spectral dependences of the asymmetry parameter in the photodetachment from OH and the previously studied O are found to be very similar.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:18046
Deposited On:17 Nov 2010 13:17
Last Modified:03 Jun 2011 12:16

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