Experimental determination of orbital and spin orientation of (Ar+)* formed in collisions

Autor:	D. H. Jaecks, B. W. Moudry, O. Yenen, Joseph Macek
Rok vydání:	1996
Předmět:	Orientation (vector space) Physics Angular momentum symbols.namesake Excited state symbols Stokes parameters Charge (physics) State (functional analysis) Atomic physics Multipole expansion Spin (physics) Atomic and Molecular Physics and Optics
Zdroj:	Physical Review A. 54:4119-4126
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.54.4119
Popis:	We have experimentally obtained the state multipoles up to rank two for {ital J}-resolved {sup 2}{ital F}{sub 7/2,5/2} states of Ar{sup +} for the two-electron process He{sup +}+Ar{r_arrow}He(1{ital s}{sup 2})+Ar{sup +}(3{ital p}{sup 4}[{sup 1}{ital D}]4{ital p}{sup 2}{ital F}{sup {ital o}}{sub 7/2,5/2}) by measuring the Stokes parameters of the fluorescence light from (Ar{sup +}){asterisk} in coincidence with the scattered He. By expanding the state multipoles of each {ital J} state in terms of total orbital and total spin multipole moments, we have determined the contributions to the experimentally determined state multipoles of each {ital J} state due to total orbital and total spin angular momenta. When the process is spin dependent, it is possible to extract magnetic octupole moments of the excited state due to the orbital charge circulation. {copyright} {ital 1996 The American Physical Society.}
Databáze:	OpenAIRE
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