A comparison of experimental and theoretical low energy positron scattering from furan

被引：4

作者：

Cheong, Z. ^{[1
]}

Moreira, G. M. ^{[2
]}

Bettega, M. H. F. ^{[2
]}

Blanco, F. ^{[3
]}

Garcia, G. ^{[4
]}

Brunger, M. J. ^{[5
,6
]}

White, R. D. ^{[7
]}

Sullivan, J. P. ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys, Laser Phys Ctr, Canberra, ACT, Australia

[2] Univ Fed Parana, Dept Fis, Caixa Postal 19044, BR-81531980 Curitiba, Parana, Brazil

[3] Univ Complutense Madrid, Dept Fis Atom Mol & Nucl, E-28040 Madrid, Spain

[4] CSIC, Inst Fis Fundamental, Serrano 113 Bis, Madrid 28006, Spain

[5] Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA, Australia

[6] UCSI Univ, Fac Business & Management, Dept Actuarial Sci & Appl Stat, Kuala Lumpur 56000, Malaysia

[7] James Cook Univ, Coll Sci & Engn, Townsville, Qld, Australia

来源：

JOURNAL OF CHEMICAL PHYSICS | 2020年 / 153卷 / 24期

基金：

澳大利亚研究理事会;

关键词：

SCHWINGER MULTICHANNEL METHOD; ELECTRON-SCATTERING; CROSS-SECTIONS; SCREENING CORRECTIONS;

D O I：

10.1063/5.0027874

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

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页数：10

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