Peculiarities of matrix-element calculations with few Coulomb functions for particles' scattering processes

Authors

  • Chuluunbaatar О LIT, Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
  • Kouzakov K.A Department of Nuclear Physics and Quantum Theory of Collisions, Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
  • Galstyan A.G Institute of Condensed Matter and Nanosciences, Universit´e catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
  • Popov Vu.V Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
  • Schoffler M.S Institut f¨ur Kernphysik, Universit¨at Frankfurt, 60438 Frankfurt, Germany

DOI:

https://doi.org/10.22353/physics.v25i478.238

Keywords:

Silverman-Platas-Matsen function, Roothaan-Hartree-Fock function

Abstract

We present ultra high resolution data on single ionization of helium under impact of 1-MeV protons in comparison with theoretical calculations. Good agreement between theory and experiment [1] is obtained. Three initial trial helium wave functions are employed: a weakly correlated Roothaan-Hartree-Fock function, a simple Silverman-Platas-Matsen function of
the configuration interaction family, and a strongly correlated function [2,3]. Multidimensional singular integrals which defining differential cross sections are calculated using special transform for each above trial function. Results of some calculations are
presented in Figure 1.

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Published

2022-02-25

How to Cite

О C., K.A, K., A.G, G., Vu.V, P., & M.S, S. (2022). Peculiarities of matrix-element calculations with few Coulomb functions for particles’ scattering processes. Scientific Transaction of the National University of Mongolia. Physics, 25(478), 220. https://doi.org/10.22353/physics.v25i478.238

Issue

Section

Research article