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Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

Physics; Multidisciplinary

Abstract

We report the first measurement of the angular distribution of the 304-Å He + ( n = 2 ) radiation following photoionization. This distribution reflects the alignment of the ion, which is related to the fraction ξ = σ ( 2 p , k d ) [ σ ( 2 p , k s ) + σ ( 2 p , k d ) ] of d component in the electron wave. The experimental angular distributions correspond to alignments of -0.62 ± 0.03 and -0.62 ± 0.02 at photon energies of 65.5 and 66.5 eV, respectively. These translate into ratios ξ = 0.25 ± 0.04 and 0.25 ± 0.03 , in good agreement with close-coupling calculations.

Journal Title

Physical Review Letters

Volume

57

Issue/Number

18

Publication Date

1-1-1986

Document Type

Article

Language

English

First Page

2260

Last Page

2263

WOS Identifier

WOS:A1986E607200006

ISSN

0031-9007

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