Autoionising states formed by electron capture in collisions of multiply charged Ne ions with He, H2and Xe

Content Provider	Scilit
Author	Morgenstern, R. Niehaus, A. Zimmermann, G.
Copyright Year	1980
Description	Journal: Journal of Physics B: Atomic and Molecular Physics Energy spectra of electrons resulting from collisions of $Ne^{+}$, $Ne^{2+}$ and $Ne^{3+}$ with He, $H_{2}$ and Xe at impact energies between 1 and 10 keV are investigated. A good energy resolution of the spectra is obtained by detecting the electrons at theta =180 degrees with respect to the beam direction, for at that angleDoppler broadening effects are minimised. Electrons result mainly from the excitation and decay of autoionising states Ne** and $Ne^{+}$** which are formed by single or double charge transfer. The excitation mechanisms are discussed with the help of correlation diagrams. Several states with the configuration $Ne^{+}(2p^{3}$,nl,n'l') which have not been reliably identified earlier are now identified. Because of the good energy resolution the authors can determine lifetimes of the excited states from measured peak widths. For the core-excited state $Ne^{+}2s2p^{5}(^{2}P)3p(^{2}$D) and a lifetime of tau =650 au for states with the configuration $Ne^{+}(2p^{3}$,nl,n'l') lifetimes of tau >or approximately=2000 au.
Related Links	http://iopscience.iop.org/article/10.1088/0022-3700/13/24/015/pdf
Ending Page	4831
Page Count	21
Starting Page	4811
ISSN	00223700
DOI	10.1088/0022-3700/13/24/015
Journal	Journal of Physics B: Atomic and Molecular Physics
Issue Number	24
Volume Number	13
Language	English
Publisher	IOP Publishing
Publisher Date	1980-12-28
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic and Molecular Physics Nuclear Physics Charge Transfer Excited States
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics