Few Body Effects in the Electron and Positron Impact Ionization of Atoms

Triple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS. Using both positrons and electrons as projectiles...

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Bibliographic Details
Main Authors:	R.I. Campeanu, Colm T. Whelan
Format:	Article
Language:	English
Published:	MDPI AG 2021-06-01
Series:	Atoms
Subjects:	ionization electron positron few body
Online Access:	https://www.mdpi.com/2218-2004/9/2/33

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spelling	doaj-dbefb111b0e046c4b99743d5a5f81e722021-06-30T23:41:54ZengMDPI AGAtoms2218-20042021-06-019333310.3390/atoms9020033Few Body Effects in the Electron and Positron Impact Ionization of AtomsR.I. Campeanu0Colm T. Whelan1Department of Physics and Astronomy, York University, Toronto, ON M3J 1P3, CanadaPhysics Department, Old Dominion University, Norfolk, VA 23529, USATriple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS. Using both positrons and electrons as projectiles has opened up the possibility of performing complementary studies which could effectively isolate competing interactions that cannot be separately detected in an experiment with a single projectile. Results will be presented in kinematics where the electron impact ionization appears to be well understood and using the same kinematics positron cross sections will be presented. The kinematics are then varied in order to focus on the role of distortion, post collision interaction (pci), and interference effects.https://www.mdpi.com/2218-2004/9/2/33ionizationelectronpositronfew body
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	R.I. Campeanu Colm T. Whelan
spellingShingle	R.I. Campeanu Colm T. Whelan Few Body Effects in the Electron and Positron Impact Ionization of Atoms Atoms ionization electron positron few body
author_facet	R.I. Campeanu Colm T. Whelan
author_sort	R.I. Campeanu
title	Few Body Effects in the Electron and Positron Impact Ionization of Atoms
title_short	Few Body Effects in the Electron and Positron Impact Ionization of Atoms
title_full	Few Body Effects in the Electron and Positron Impact Ionization of Atoms
title_fullStr	Few Body Effects in the Electron and Positron Impact Ionization of Atoms
title_full_unstemmed	Few Body Effects in the Electron and Positron Impact Ionization of Atoms
title_sort	few body effects in the electron and positron impact ionization of atoms
publisher	MDPI AG
series	Atoms
issn	2218-2004
publishDate	2021-06-01
description	Triple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS. Using both positrons and electrons as projectiles has opened up the possibility of performing complementary studies which could effectively isolate competing interactions that cannot be separately detected in an experiment with a single projectile. Results will be presented in kinematics where the electron impact ionization appears to be well understood and using the same kinematics positron cross sections will be presented. The kinematics are then varied in order to focus on the role of distortion, post collision interaction (pci), and interference effects.
topic	ionization electron positron few body
url	https://www.mdpi.com/2218-2004/9/2/33
work_keys_str_mv	AT ricampeanu fewbodyeffectsintheelectronandpositronimpactionizationofatoms AT colmtwhelan fewbodyeffectsintheelectronandpositronimpactionizationofatoms
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Few Body Effects in the Electron and Positron Impact Ionization of Atoms

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