https://doi.org/10.1140/epjd/e2018-90537-4
Regular Article
Evaluation of differential cross sections using classical two-active electron models for He★
Instituto de Física del Sur (IFISUR), Departamento de Física, Universidad Nacional del Sur (UNS), CONICET, Av. L. N. Alem 1253, B8000CPB - Bahía
Blanca, Argentina
a e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
30
September
2018
Received in final form:
27
October
2018
Published online: 10 January 2019
Abstract
Differential cross sections for charge-exchange and single and double electronic emission in collisions of protons with He atoms at intermediate impact energies are theoretically evaluated by means of two classical trajectory Monte Carlo methods. These models incorporate momentum-dependent terms to the Hamiltonian in order to avoid the classical autoionization of He. The theoretical results for single capture and single ionization are compared to available experimental data. The role of the electron–electron correlation effects in double ionization processes is analyzed by inspecting the angular and energetic dependence of the electronic emission spectra at different impact energies.
Contribution to the Topical Issue “Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (2018)”, edited by Károly Tőkési, Béla Paripás, Gábor Pszota, and Andrey V. Solov’yov.
© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2019
