Solving close-coupling equations in momentum space without singularities for charged targets
Abstract
The analytical treatment of the Greens function in the convergent close-coupling method [Bray et al. Comp. Phys. Comm. 203 147 (2016)] has been extended to charged targets. Furthermore, we show that this approach allows for calculation of cross sections at zero channel energy. For neutral targets this means the electron scattering length may be obtained from a single calculation with zero incident energy. For charged targets the non-zero excitation cross sections at thresholds can also be calculated by simply setting the incident energy to the exact threshold value. These features are demonstrated by considering electron scattering on H and He+.
Keywords
Cite
@article{arxiv.1609.04075,
title = {Solving close-coupling equations in momentum space without singularities for charged targets},
author = {A. W. Bray and I. B. Abdurakhmanov and A. S. Kadyrov and D. V. Fursa and I. Bray},
journal= {arXiv preprint arXiv:1609.04075},
year = {2016}
}
Comments
Still trying to withdraw this paper because the title is clashing with an existing published article (the 2nd in the series)