Low energy elastic and inelastic scattering of positrons from formic acid

This paper presents a detailed study of low energy positron scattering from formic acid, examining elastic scattering, electronic excitation and ionisation processes. Through detailed comparisons with previous experimental and theoretical data, it is clear that the picture for positron scattering fr...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2024-09, Vol.57 (17), p.175201
Main Authors: Stevens, D, Datar, Aaditya, Cheong, Z, Sullivan, J P
Format: Article
Language:English
Subjects:
differential cross section
electron scattering
formic acid
low energy
positron scattering
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Summary:This paper presents a detailed study of low energy positron scattering from formic acid, examining elastic scattering, electronic excitation and ionisation processes. Through detailed comparisons with previous experimental and theoretical data, it is clear that the picture for positron scattering from this target remains incomplete, with significant disagreement between experiment and theory in the comparisons of differential cross section data. Calculations of elastic electron scattering are unexpectedly in better agreement with the positron scattering experiments, and give some hints as to potential areas for improvement in the modelling of scattering for targets which tend to be dominated by dipole interactions.
ISSN:0953-4075
1361-6455
DOI:10.1088/1361-6455/ad636a