Anisotropy and polarization in charge changing collisions of with Na(3s) and laser aligned Na(3p)
- 14 July 1996
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 29 (13) , 2819-2836
Abstract
Absolute cross sections for 5) emission at 465.7 nm after collisions of ions with ground state Na(3s) and laser excited aligned Na(3p) atoms are measured over the collision energy range of . For Na(3s) polarizations are observed by measuring the linear polarization of the emitted light. In these collisions the polarization is found to be 0.33 and almost independent of the collision energy. Cross sections for collisions with the Na(3p) target are up to five times larger than for collisions with Na(3s). Slightly larger cross sections are measured when the laser excited Na(3p) target is -aligned as compared to a -alignment. Classical trajectory Monte Carlo (CTMC) calculations agree excellently with the experimental findings and yield predictions of strong positive polarizations for electron capture also from aligned Na(3p), indicating preferential capture to states.Keywords
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