Collisional mixing among excited degenerate states in inelastic ion-atom collisions
Stark mixing among excited degenerate states following capture or excitation by ion impact on hydrogenlike atoms is calculated at high velocities by using the perturbative formalism. For electron capture, the second-order Brinkman-Kramers approximation is found to describe the correct infinitesimal...
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todo:paper_10502947_v53_n6_p4132_Montanari2023-10-03T15:59:01Z Collisional mixing among excited degenerate states in inelastic ion-atom collisions Montanari, C.C. Miraglia, J.E. Stark mixing among excited degenerate states following capture or excitation by ion impact on hydrogenlike atoms is calculated at high velocities by using the perturbative formalism. For electron capture, the second-order Brinkman-Kramers approximation is found to describe the correct infinitesimal Stark rotation valid in the high-velocity regime. However, the second-order continuum distorted-wave approximation does not provide such a rotational form in that regime. It is concluded that the continuum distorted-wave amplitudes should not be Stark rotated even though a numerical coincidence is found between our formalism and the usual Stark rotation in the experimental range of interest. Finally for electron excitation, it is found that the perturbative formalism does not lead to a rotational structure. © 1996 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10502947_v53_n6_p4132_Montanari |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Stark mixing among excited degenerate states following capture or excitation by ion impact on hydrogenlike atoms is calculated at high velocities by using the perturbative formalism. For electron capture, the second-order Brinkman-Kramers approximation is found to describe the correct infinitesimal Stark rotation valid in the high-velocity regime. However, the second-order continuum distorted-wave approximation does not provide such a rotational form in that regime. It is concluded that the continuum distorted-wave amplitudes should not be Stark rotated even though a numerical coincidence is found between our formalism and the usual Stark rotation in the experimental range of interest. Finally for electron excitation, it is found that the perturbative formalism does not lead to a rotational structure. © 1996 The American Physical Society. |
| format |
JOUR |
| author |
Montanari, C.C. Miraglia, J.E. |
| spellingShingle |
Montanari, C.C. Miraglia, J.E. Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| author_facet |
Montanari, C.C. Miraglia, J.E. |
| author_sort |
Montanari, C.C. |
| title |
Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| title_short |
Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| title_full |
Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| title_fullStr |
Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| title_full_unstemmed |
Collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| title_sort |
collisional mixing among excited degenerate states in inelastic ion-atom collisions |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v53_n6_p4132_Montanari |
| work_keys_str_mv |
AT montanaricc collisionalmixingamongexciteddegeneratestatesininelasticionatomcollisions AT miragliaje collisionalmixingamongexciteddegeneratestatesininelasticionatomcollisions |
| _version_ |
1807317990742425600 |