By investigating Hel spectral lines emitted by helium atoms after 30-50 keV HetHe collisions the post-collisional states of target and projectile atoms can be determined. Using in particular level-crossing and anticrossing spectroscopy we found that both target atoms resulting from direct excitation and projectile atoms resulting from capture excitation have extremely asymmetric charge distributions immediately after a collision. These results can be explained by the idea of Paul-trap promotion.

Date Published: 1 June 2005
PDF: 9 pages
Proc. SPIE 5849, Fifth Workshop on Atomic and Molecular Physics, (1 June 2005); doi: 10.1117/12.629389

Published in SPIE Proceedings Vol. 5849:
Fifth Workshop on Atomic and Molecular Physics
Jerzy Kwela; Ryszard Drozdowski; Tomasz J. Wasowicz, Editor(s)