Dynamic effective charge in the target continuum within the CDW-EIS model for ionisation in ion–atom collisions: angular dependence
| Autor: | Juan Manuel Monti, Roberto D. Rivarola, M. F. Rojas, M. A. Quinto |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Continuum (design consultancy) Optical physics Charge (physics) Residual 01 natural sciences Atomic and Molecular Physics and Optics Effective nuclear charge 030218 nuclear medicine & medical imaging Ion 03 medical and health sciences 0302 clinical medicine Ionization 0103 physical sciences Atom Atomic physics 010306 general physics |
| Zdroj: | The European Physical Journal D. 75 |
| ISSN: | 1434-6079 1434-6060 |
| Popis: | In the present work, the consideration of a dynamic charge to describe the non-Coulomb potential of the residual target for ionisation in bare ion–multielectron atom collisions is studied. This is based on the well-known Belkic’s prescription. It is shown that using an emission-angle-dependent charge in the final residual target continuum state improves the doubly differential cross sections for backward emission angles. It appears as an excellent choice to avoid large time-consuming calculations, associated with the use of numerical continuum functions. Improving the physical description of the ionisation reaction whilst keeping calculation times as low as possible is necessary for multiple applications that require large cross sections databases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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