甲酸正电子的低能弹性和非弹性散射

IF 1.5 4区物理与天体物理 Q3 OPTICS

Journal of Physics B: Atomic, Molecular and Optical Physics Pub Date : 2024-07-15 DOI:10.1088/1361-6455/ad636a

David Stevens, Aaditya Datar, Z. Cheong, J. P. Sullivan

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引用次数: 0

摘要

本文详细研究了甲酸的低能正电子散射，考察了弹性散射、电子激发和电离过程。通过与以前的实验和理论数据进行详细比较，可以清楚地看出，该目标的正电子散射情况仍然不完整，在差分截面数据的比较中，实验和理论之间存在明显的分歧。出乎意料的是，弹性电子散射的计算结果与正电子散射实验有较好的一致性，这也为改进以偶极子相互作用为主的目标散射建模的潜在领域提供了一些提示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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 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.

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来源期刊

Journal of Physics B: Atomic, Molecular and Optical Physics 物理-光学

CiteScore

3.60

自引率

6.20%

发文量

182

审稿时长

2.8 months

期刊介绍： Published twice-monthly (24 issues per year), Journal of Physics B: Atomic, Molecular and Optical Physics covers the study of atoms, ions, molecules and clusters, and their structure and interactions with particles, photons or fields. The journal also publishes articles dealing with those aspects of spectroscopy, quantum optics and non-linear optics, laser physics, astrophysics, plasma physics, chemical physics, optical cooling and trapping and other investigations where the objects of study are the elementary atomic, ionic or molecular properties of processes.