Second-Order Distorted Wave Calculation for Electron-Impact Ionization of Helium to He⁺ (N = 1 and 2)
Abstract
Second-order distorted wave calculations are presented for electron-impact ionization of helium with the residual ion left in the n = 1 and 2 states at intermediate energies in coplanar asymmetric geometry. Whereas previous second-order calculations have used the plane wave Born approximation and have used approximations to simplify the evaluation of the second-order term, we perform a full distorted wave calculation and make no approximations in the evaluation of the second-order amplitude (i.e. we sum over all contributing intermediate states). The triple differential cross sections are compared with experimental measurements.
Recommended Citation
Z. Chen and D. H. Madison, "Second-Order Distorted Wave Calculation for Electron-Impact Ionization of Helium to He⁺ (N = 1 and 2)," Journal of Physics B: Atomic, Molecular and Optical Physics, Institute of Physics - IOP Publishing, Dec 2005.
The definitive version is available at https://doi.org/10.1088/0953-4075/38/23/003
Department(s)
Physics
Sponsor(s)
National Science Foundation (U.S.)
Keywords and Phrases
Atomic Excitation and Ionization; Atomic Physics; Molecular Physics; Stereochemistry
International Standard Serial Number (ISSN)
0953-4075
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2005 Institute of Physics - IOP Publishing, All rights reserved.
Publication Date
01 Dec 2005
