DWBA double differential ionization cross sections for positron and electron impact on argon

被引:4
作者
Campeanu, Radu I. [1 ]
机构
[1] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Atomic and Molecular Collisions;
D O I
10.1140/epjd/e2017-80518-6
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The ionization of the 3p orbital of argon by 100 eV incident electrons and positrons is studied with the DWBA-WM approximation. The variation of our double differential ionization cross sections with the angles of the ejected electrons is found to be in reasonable agreement with the experiment. We found that the inclusion of the post-collision interaction in the theoretical model is necessary to obtain the size of the difference between the experimental double differential cross sections for electron and positron impact ionization.
引用
收藏
页数:3
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共 6 条
[1]   A coincidence study of electron and positron impact ionization of Ar (3p) at 1 keV [J].
Campeanu, Radu I. ;
Walters, James H. R. ;
Whelan, Colm T. .
EUROPEAN PHYSICAL JOURNAL D, 2015, 69 (10) :1-5
[2]   Differential Cross Sections for Ionization of Argon by 1 keV Positron and Electron Impact [J].
DuBois, R. D. ;
Gavin, J. ;
de Lucio, O. G. .
XXVIII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC), 2014, 488
[3]   SEMIPHENOMENOLOGICAL OPTICAL-MODEL FOR ELECTRON-SCATTERING ON ATOMS [J].
FURNESS, JB ;
MCCARTHY, IE .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1973, 6 (11) :2280-2291
[4]   POSITRON-ATOM DOUBLY DIFFERENTIAL IONIZATION CROSS-SECTIONS [J].
SCHMITT, A ;
CERNY, U ;
MOLLER, H ;
RAITH, W ;
WEBER, M .
PHYSICAL REVIEW A, 1994, 49 (01) :R5-R7
[5]   DOUBLY-DIFFERENTIAL IONIZATION CROSS-SECTIONS OF POSITRON-IMPACT ON ARGON [J].
SCHMITT, A ;
CERNY, U ;
FALKE, T ;
MOLLER, H ;
RAITH, W ;
WEBER, M .
HYPERFINE INTERACTIONS, 1994, 89 (1-4) :133-140
[6]   WAVE-FUNCTIONS FOR CONTINUUM STATES OF CHARGED FRAGMENTS [J].
WARD, SJ ;
MACEK, JH .
PHYSICAL REVIEW A, 1994, 49 (02) :1049-1056