Electron capture in asymmetric collisions

A new theoretical approach to calculate electron-capture cross sections is developed to deal with asymmetric collisions. The method consists of introducing the correct Coulomb asymptotic conditions to the peaking impulse approximation. The approach is elaborated to be meaningful, not only at high pr...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 1984
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v30_n4_p1721_Miraglia
http://hdl.handle.net/20.500.12110/paper_10502947_v30_n4_p1721_Miraglia
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10502947_v30_n4_p1721_Miraglia
record_format dspace
spelling paper:paper_10502947_v30_n4_p1721_Miraglia2023-06-08T16:01:26Z Electron capture in asymmetric collisions A new theoretical approach to calculate electron-capture cross sections is developed to deal with asymmetric collisions. The method consists of introducing the correct Coulomb asymptotic conditions to the peaking impulse approximation. The approach is elaborated to be meaningful, not only at high projectile energies, but also in the intermediate region (i.e., when the ion velocity, in atomic units, is much larger than the smaller Coulomb charge, but about the same order of the larger charge). An integral expression of the T-matrix element is obtained after performing a peaking approximation. This element has a closed form for any transition. K-K charge exchange total and differential cross sections are calculated and compared with experimental results. The approach seems to be more reliable than the continuum distorted wave and peaking impulse approximation. © 1984 The American Physical Society. 1984 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v30_n4_p1721_Miraglia http://hdl.handle.net/20.500.12110/paper_10502947_v30_n4_p1721_Miraglia
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A new theoretical approach to calculate electron-capture cross sections is developed to deal with asymmetric collisions. The method consists of introducing the correct Coulomb asymptotic conditions to the peaking impulse approximation. The approach is elaborated to be meaningful, not only at high projectile energies, but also in the intermediate region (i.e., when the ion velocity, in atomic units, is much larger than the smaller Coulomb charge, but about the same order of the larger charge). An integral expression of the T-matrix element is obtained after performing a peaking approximation. This element has a closed form for any transition. K-K charge exchange total and differential cross sections are calculated and compared with experimental results. The approach seems to be more reliable than the continuum distorted wave and peaking impulse approximation. © 1984 The American Physical Society.
title Electron capture in asymmetric collisions
spellingShingle Electron capture in asymmetric collisions
title_short Electron capture in asymmetric collisions
title_full Electron capture in asymmetric collisions
title_fullStr Electron capture in asymmetric collisions
title_full_unstemmed Electron capture in asymmetric collisions
title_sort electron capture in asymmetric collisions
publishDate 1984
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v30_n4_p1721_Miraglia
http://hdl.handle.net/20.500.12110/paper_10502947_v30_n4_p1721_Miraglia
_version_ 1768543761951883264

Ejemplares similares