Determination of rank 4 multipoles and of the partial cross sections for He(31D) excitation by electron impact

A. G. Mikosza*, R. Hippler, J. B. Wang, J. F. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We report the first measurements of a rank 4 state multipole for He(31D) excitation by electron impact with a polarized photon-photon coincidence technique. Our results allow, for the first time, the extraction of partial cross sections σm for He(31Dm) excitation (m=0, ±1, ±2) which are not otherwise available. The present results put stringent tests on existing theories and, for example, point in the theoretical calculations to an overestimation of the partial cross section σ2.

Original languageEnglish
Pages (from-to)235-238
Number of pages4
JournalPhysical Review Letters
Volume71
Issue number2
DOIs
Publication statusPublished - 1993
Externally publishedYes

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