Anomalously large low-energy elastic cross sections for electron scattering from the CF3 radical

被引：18

作者：

Brunton, J. R. ^{[1
]}

Hargreaves, L. R. ^{[1
]}

Buckman, S. J. ^{[2
]}

Garcia, G. ^{[3
]}

Blanco, F. ^{[4
]}

Zatsarinny, O. ^{[5
]}

Bartschat, K. ^{[5
]}

Brunger, M. J. ^{[1
,6
]}

机构：

[1] Flinders Univ S Australia, ARC Ctr Antimatter Matter Studies, CaPS, Adelaide, SA 5001, Australia

[2] Australian Natl Univ, RSPE, ARC Ctr Antimatter Matter Studies, Canberra, ACT 0200, Australia

[3] CSIC, Inst Fis Fundamental, E-28006 Madrid, Spain

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

[5] Drake Univ, Dept Phys & Astron, Des Moines, IA 50311 USA

[6] Univ Malaya, Inst Math Sci, Kuala Lumpur, Malaysia

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 568卷

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

R-MATRIX METHOD; SCREENING CORRECTIONS; POLYATOMIC-MOLECULES; IMPACT; IONIZATION; COLLISIONS; X=1-3; EXCITATION; BEAM;

D O I：

10.1016/j.cplett.2013.03.023

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：

Using a crossed electron-molecular-beam apparatus, absolute elastic cross sections for electron scattering from the CF3 molecule were measured. Differential cross sections were determined for incident electron energies in the range 7-50 eV and over an angular range of 20-135 degrees. Integral cross sections are subsequently derived from those data. The present measurements are compared to theoretical predictions using an extended independent atom model approach, and with earlier R-matrix and Schwinger Multichannel results. Agreement with theory is generally good at energies above 20 eV, but for 20 eV and below the measured cross sections are significantly larger than those predicted by all theories. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：55 / 58

页数：4

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