
DETERMINING ELASTIC CROSS-SECTIONS IN POSITRON-HELIUM ION COLLISIONS
Zainab Abdel-Mageed , Physics Department, Faculty of Science, Ain Shams University, Abbassia, Cairo11566, EgyptAbstract
This study investigates the elastic cross-sections of positron scattering from helium ions, an important process in understanding the fundamental interactions in atomic and plasma physics. Using advanced computational techniques and quantum mechanical models, we calculate the differential and total elastic cross-sections for positron collisions with singly and doubly ionized helium ions over a range of incident energies. The results are analyzed to reveal the underlying scattering mechanisms and to compare with existing experimental and theoretical data. Our findings provide new insights into the role of electron correlation and positronium formation in these collisions, contributing to the broader knowledge of positron interactions with complex atomic systems. This study also discusses the implications of these cross-sections for applications in fields such as astrophysics, plasma diagnostics, and radiation therapy.
Keywords
Elastic cross-sections, positron scattering, helium ions
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