https://doi.org/10.1007/s100530050023
Line emission and alignment effects in state selective electron transfer in He2+-Li(2s, 2pΣ, 2pπ) collisions
Department of Physics, Banaras Hindu University,
Varanasi 221 005, India
Received:
3
July
1998
Revised:
3
June
1999
Published online: 15 February 2000
Classical Trajectory Monte-Carlo (CTMC) method has been used to investigate state
selective electron capture by He2+ ions colliding with Li(2s) and Li
(2p)
in Σ as well as
Π alignments in the energy range 1-15 keV/amu. He+(4l) electron capture,
line emission
[ He II(n = 4 
3)] cross-sections and alignment parameters have been calculated and
analyzed in the light of the available results. The undulatory structure of the capture and
emission cross-sections have been explained qualitatively in terms of a
quasi-molecular
ion formation. Projectile impact energy and spatial overlap play crucial role in
determining the alignment effects.
PACS: 34.70.+e – Charge transfer
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
