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Dynamic effective charge in the target continuum within the CDW-EIS model for ionisation in ion–atom collisions: angular dependence

  • Regular Article - Atomic and Molecular Collisions
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Abstract

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 Belkić’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.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: This paper has no further data in the form of tables or similar beyond the published results.]

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Acknowledgements

This work was partially supported by the Agencia Nacional de Promoción Científica y Tecnológica de la República Argentina, through the Project PICT 2015-3392. All authors like to acknowledge this support.

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Authors and Affiliations

  1. Laboratorio de Colisiones Atómicas. Instituto de Física Rosario (CONICET-UNR) and Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Universidad Nacional de Rosario, Avenida Pellegrini 250, 2000, Rosario, Argentina

    M. F. Rojas, M. A. Quinto, R. D. Rivarola & J. M. Monti

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  1. M. F. Rojas
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  2. M. A. Quinto
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  3. R. D. Rivarola
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Correspondence to J. M. Monti.

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Rojas, M.F., Quinto, M.A., Rivarola, R.D. et al. Dynamic effective charge in the target continuum within the CDW-EIS model for ionisation in ion–atom collisions: angular dependence. Eur. Phys. J. D 75, 154 (2021). https://doi.org/10.1140/epjd/s10053-021-00165-w

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