Dynamic effective charge in the continuum on the CDW-EIS model for ionisation in ion-atom collisions: angular and energy dependence.

ROJAS, MARIA FERNANDA; QUINTO, MICHELE ARCANGELO; RIVAROLA, ROBERTO; MONTI, JUAN MANUEL

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

IOP PUBLISHING LTD

Año: 2023 vol. 56

0953-4075

In this work, a dynamic charge is employed in the Continuum Distorted Wave - Eikonal Initial State theoretical model to describe the non-Coulomb potential of the residual target for single ionisation in bare ion-multielectron atom collisions. A comparison between the well-known Belkic´ss prescription and the effective charge depending on emission-angle and -energy in the final residual-target continuum state is shown. The obtained results shown that this effective charge improves the description of double differential cross sections for backwards emission angles over the whole emission energy range allowing the calculation of simply differential and total cross sections.