Double-ionization Compton profile of two-electron systems

The double-ionization Compton profile [Formula Presented] of a two-electron system is studied using highly correlated configuration-interaction–type wave functions for the initial state. For the case of helium we calculate the double-ionization profile using an uncorrelated double-continuum final st...

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Autores principales: Kornberg, Mariano Alberto, Miraglia, Jorge Esteban
Publicado: 1998
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v57_n6_p4490_Kornberg
http://hdl.handle.net/20.500.12110/paper_10502947_v57_n6_p4490_Kornberg
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10502947_v57_n6_p4490_Kornberg
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spelling paper:paper_10502947_v57_n6_p4490_Kornberg2023-06-08T16:01:47Z Double-ionization Compton profile of two-electron systems Kornberg, Mariano Alberto Miraglia, Jorge Esteban The double-ionization Compton profile [Formula Presented] of a two-electron system is studied using highly correlated configuration-interaction–type wave functions for the initial state. For the case of helium we calculate the double-ionization profile using an uncorrelated double-continuum final state, which is a good approximation for the kinematic conditions of high-momentum transfer. Excellent agreement with the predictions of the impulse approximation (IA) is obtained. However, the use of a double-continuum wave function accounts for an asymmetry in the profile, in contrast with the symmetric peak predicted by the IA. Results for other two-electron systems are presented within the IA, and the high-[Formula Presented] scaling property of the profile is found. The different momentum regions of the profile are discussed in terms of the physical mechanism of double ionization. © 1998 The American Physical Society. Fil:Kornberg, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Miraglia, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v57_n6_p4490_Kornberg http://hdl.handle.net/20.500.12110/paper_10502947_v57_n6_p4490_Kornberg
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The double-ionization Compton profile [Formula Presented] of a two-electron system is studied using highly correlated configuration-interaction–type wave functions for the initial state. For the case of helium we calculate the double-ionization profile using an uncorrelated double-continuum final state, which is a good approximation for the kinematic conditions of high-momentum transfer. Excellent agreement with the predictions of the impulse approximation (IA) is obtained. However, the use of a double-continuum wave function accounts for an asymmetry in the profile, in contrast with the symmetric peak predicted by the IA. Results for other two-electron systems are presented within the IA, and the high-[Formula Presented] scaling property of the profile is found. The different momentum regions of the profile are discussed in terms of the physical mechanism of double ionization. © 1998 The American Physical Society.
author Kornberg, Mariano Alberto
Miraglia, Jorge Esteban
spellingShingle Kornberg, Mariano Alberto
Miraglia, Jorge Esteban
Double-ionization Compton profile of two-electron systems
author_facet Kornberg, Mariano Alberto
Miraglia, Jorge Esteban
author_sort Kornberg, Mariano Alberto
title Double-ionization Compton profile of two-electron systems
title_short Double-ionization Compton profile of two-electron systems
title_full Double-ionization Compton profile of two-electron systems
title_fullStr Double-ionization Compton profile of two-electron systems
title_full_unstemmed Double-ionization Compton profile of two-electron systems
title_sort double-ionization compton profile of two-electron systems
publishDate 1998
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v57_n6_p4490_Kornberg
http://hdl.handle.net/20.500.12110/paper_10502947_v57_n6_p4490_Kornberg
work_keys_str_mv AT kornbergmarianoalberto doubleionizationcomptonprofileoftwoelectronsystems
AT miragliajorgeesteban doubleionizationcomptonprofileoftwoelectronsystems
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