https://doi.org/10.1140/epjd/e2014-40716-4
Regular Article
Electron (positron) impact excitation (2p state) of lithium at intermediate energies*
1 Centre for Foundation Studies in
Science, University of Malaya, 50603
Kuala Lumpur,
Malaysia
2 Institute of Mathematical Sciences,
University of Malaya, 50603
Kuala Lumpur,
Malaysia
3 Department of Physics, Faculty of Science, National
University of Singapore, Singapore
a
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
14
November
2013
Received in final form:
3
January
2014
Published online:
18
March
2014
Abstract
In this work, studies have been carried out to investigate theoretically the electron
(positron)-impact-induced 2s → 2p lithium (Li) transition at
20 and 60 eV using the coupled-channel optical method (CCOM). The inelastic differential
cross sections (DCS) together with the reduced Stokes parameters (
, 
, 
) and other parameters such as the alignment
(γ, 
), orientation (L⊥) and
coherence parameters (P+) are reported in the present
calculations. Comparison is made with other available theoretical and experimental
measurements.
Contribution to the Topical Issue “Electron and Positron Induced Processes”, edited by Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014
