A comparison of experimental and theoretical low energy positron scattering from furan.
A comparison of experimental and theoretical low energy positron scattering from furan.
复制标题
呋喃低能正电子散射的实验与理论比较。
DOI：
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发表时间：
2020
影响因子：
4.4
通讯作者：
J. Sullivan
中科院分区：
文献类型：
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作者：
Z. Cheong;G. M. Moreira;M. Bettega;F. Blanco;G. García;M. Brunger;R. D. White;J. Sullivan
本文对呋喃的正电子散射进行了实验和理论研究。实验数据是用位于澳大利亚国立大学的低能正电子束线测量的，涵盖了从1 eV到30 eV的能量范围。测量了总散射、总弹性和非弹性散射、正电子形成和微分弹性散射的截面。提出了两种理论方法：Schwinger多通道法和带筛选校正可加性规则的独立原子法。此外，我们的数据与来自同一目标的相应电子散射结果进行了比较，并观察和讨论了许多显着差异。
This paper presents a joint experimental and theoretical study of positron scattering from furan. Experimental data were measured using the low energy positron beamline located at the Australian National University and cover an energy range from 1 eV to 30 eV. Cross sections were measured for total scattering, total elastic and inelastic scattering, positronium formation, and differential elastic scattering. Two theoretical approaches are presented: the Schwinger multichannel method and the independent atom method with screening corrected additivity rule. In addition, our data are compared to corresponding electron scattering results from the same target with a number of significant differences observed and discussed.