Research Papers in Physics and Astronomy

 

Date of this Version

March 1999

Comments

Published by American Physical Society. Phys. Rev. A 59, R1731 (1999). http://pra.aps.org. Copyright © 1999 American Physical Society. Permission to use.

Abstract

Partial photodetachment and photoionization cross sections corresponding to highly excited residual atoms or ions are shown analytically to mirror one another in the neighborhood of a resonance. More precisely, any two groupings of partial cross sections are shown here to have components whose variations with energy near a resonance are equal in magnitude and opposite in direction. This work extends an analysis of Starace [Phys. Rev. A 16, 231 (1977)] for the behavior of partial cross sections near a resonance to the case when the ρ2 parameter of Fano and Cooper [Phys. Rev. 137, A1364 (1965)] tends to zero.

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