Institute of Theoretical Physics · Faculty of Mathematics and Physics, Charles University
Comput. Phys. Commun. 185, 2893-2902 (2014)
Being motivated by the applied researchers’ persisting need for accurate scattering data for the collisions
of electrons with hydrogen atoms, we developed a computer package – Hex – that is designed to provide
trustworthy results for all basic discrete and continuous processes within non-relativistic framework. The
package consists of several computational modules that implement different methods, valid for specific
energy regimes. Results of the modules are kept in a common database in the unified form of low-level
scattering data (partial-wave T -matrices) and accessed by an interface program which is able to produce
various derived quantities like e.g. differential and integral cross sections. This article is the first one of
a series of articles that are concerned with the implementation and testing of the modules. Here we
give an overview of their structure and present (a) the command-line interface program hex-db that can
be also easily compiled into a derived code or used as a backend for a web-page form and (b) simple
illustrative module specialized for high energies, hex-dwba, that implements distorted and plane wave
Born approximation.
@article{UTF535,
author = {Benda, J. and Houfek, K.},
title = {{Collisions of electrons with hydrogen atoms I. Package outline and high energy code}},
journal = {Comput. Phys. Commun.},
volume = {185},
pages = {2893-2902},
year = {2014},
doi = {0.1016/j.cpc.2014.05.031},
}