Journal Article

PUBDB-2017-03225

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Helium and neon photoelectron satellites at threshold

Heimann, P.Extern* ; Becker, U.Extern* ; Kerkhoff, H. G. ; Langer, B.Extern* ; Szostak, D. ; Wehlitz, R. ; Lindle, D. W. ; Ferrett, T. A. ; Shirley, D. A.

1986
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevA.34.3782  doi:10.3204/PUBDB-2017-03225

Abstract: Photoionization of helium and neon to excited satellite states, He$^+$ nl and Ne$_+$ 1s$^2$2s$^2$2p$^4$nl, was studied with synchrotron radiation and threshold electron analysis. Photoelectron satellites have been directly measured at threshold for the first time to our knowledge. The relative satellite cross sections were determined over the kinetic energy range from 0 to 1 eV. The angular distributions were also evaluated close to threshold. Strong correlation effects were observed in two cases. For He near threshold, the angular-distribution asymmetry parameter β is near zero for the n=2 satellite and is increasingly negative for the higher-n satellites, in agreement with the theoretical prediction of Greene. In the threshold photoelectron spectrum of Ne, many final states are present, some with quartet spin multiplicity and others with high-L values.

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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