Extracting low-energy electron-atom scattering parameters from ionic measurements

We analyze different methods to extract from ionic measurements electron-atom scattering parameters, such as the scattering length. Different generalizations of O'Malley et al.'s modified effective range theory, such as for instance Fabrikant's approach or the multichannel theory of W...

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Guardado en:
Detalles Bibliográficos
Publicado: 2003
Materias:
Effective range theory
Ionization
Electron scattering
Elementary particles
Fabrikant approach
Atomic physics
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v205_n_p543_Macri
http://hdl.handle.net/20.500.12110/paper_0168583X_v205_n_p543_Macri
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0168583X_v205_n_p543_Macri
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spelling paper:paper_0168583X_v205_n_p543_Macri2023-06-08T15:17:48Z Extracting low-energy electron-atom scattering parameters from ionic measurements Effective range theory Ionization Electron scattering Elementary particles Ionization Fabrikant approach Atomic physics We analyze different methods to extract from ionic measurements electron-atom scattering parameters, such as the scattering length. Different generalizations of O'Malley et al.'s modified effective range theory, such as for instance Fabrikant's approach or the multichannel theory of Watanabe and Greene, are used in the literature to fit the experimental data. In this communication we propose a different approach that provides a significant improvement over other methods on a much broader range of energies. We discuss its applicability in the case of negative ion photodetachment and in coincidence measurements of electron capture and loss to the continuum in atomic collisions. © 2003 Elsevier Science B.V. All rights reserved. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v205_n_p543_Macri http://hdl.handle.net/20.500.12110/paper_0168583X_v205_n_p543_Macri
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Effective range theory
Ionization
Electron scattering
Elementary particles
Ionization
Fabrikant approach
Atomic physics
spellingShingle Effective range theory
Ionization
Electron scattering
Elementary particles
Ionization
Fabrikant approach
Atomic physics
Extracting low-energy electron-atom scattering parameters from ionic measurements
topic_facet Effective range theory
Ionization
Electron scattering
Elementary particles
Ionization
Fabrikant approach
Atomic physics
description We analyze different methods to extract from ionic measurements electron-atom scattering parameters, such as the scattering length. Different generalizations of O'Malley et al.'s modified effective range theory, such as for instance Fabrikant's approach or the multichannel theory of Watanabe and Greene, are used in the literature to fit the experimental data. In this communication we propose a different approach that provides a significant improvement over other methods on a much broader range of energies. We discuss its applicability in the case of negative ion photodetachment and in coincidence measurements of electron capture and loss to the continuum in atomic collisions. © 2003 Elsevier Science B.V. All rights reserved.
title Extracting low-energy electron-atom scattering parameters from ionic measurements
title_short Extracting low-energy electron-atom scattering parameters from ionic measurements
title_full Extracting low-energy electron-atom scattering parameters from ionic measurements
title_fullStr Extracting low-energy electron-atom scattering parameters from ionic measurements
title_full_unstemmed Extracting low-energy electron-atom scattering parameters from ionic measurements
title_sort extracting low-energy electron-atom scattering parameters from ionic measurements
publishDate 2003
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v205_n_p543_Macri
http://hdl.handle.net/20.500.12110/paper_0168583X_v205_n_p543_Macri
_version_ 1768543225647202304

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