Influence of the electron binding energy in the distortion of the initial state in ion-atom collisions

M. F. Ciappina; W. R. Cravero; C. R. Garibotti

doi:10.1103/PhysRevA.70.062713

Influence of the electron binding energy in the distortion of the initial state in ion-atom collisions

M. F. Ciappina^*, W. R. Cravero, C. R. Garibotti

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A simple classical model based on linear response was developed to include binding-energy effects in the entrance channel for ion-atom ionization. The resulting theory was use for helium single ionization by singly and multiply charged ions. It was confirmed that distorted wave theories are sensitive to the choice of the initial state and that binding-energy effects for the active electron should be taken into account in initial-state distortions for intermediate impact energies. The results show that modified continuum distorted wave (CDW) approximation includes the active electron binding energy in the distorted wave description of the initial state.

Original language	English
Article number	062713
Pages (from-to)	062713-1-062713-6
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	70
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.70.062713
State	Published - Dec 2004
Externally published	Yes

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10.1103/PhysRevA.70.062713

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title = "Influence of the electron binding energy in the distortion of the initial state in ion-atom collisions",

abstract = "A simple classical model based on linear response was developed to include binding-energy effects in the entrance channel for ion-atom ionization. The resulting theory was use for helium single ionization by singly and multiply charged ions. It was confirmed that distorted wave theories are sensitive to the choice of the initial state and that binding-energy effects for the active electron should be taken into account in initial-state distortions for intermediate impact energies. The results show that modified continuum distorted wave (CDW) approximation includes the active electron binding energy in the distorted wave description of the initial state.",

author = "Ciappina, {M. F.} and Cravero, {W. R.} and Garibotti, {C. R.}",

note = "Funding Information: This work has been partially supported by Universidad Nacional del Sur through PGI No. 24∕F027 and ANPCyT Argentina through PICT99∕03∕0624. M.F.C. acknowledges Fundaci{\'o}n Antorchas and the DAAD for financial support and A. Voitkiv, B. Najjari, and R. Moshammer for fruitful discussions and their hospitality at the Max-Planck Institut f{\"u}r Kernphysik (Heidelberg).",

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doi = "10.1103/PhysRevA.70.062713",

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AU - Ciappina, M. F.

AU - Cravero, W. R.

AU - Garibotti, C. R.

N1 - Funding Information: This work has been partially supported by Universidad Nacional del Sur through PGI No. 24∕F027 and ANPCyT Argentina through PICT99∕03∕0624. M.F.C. acknowledges Fundación Antorchas and the DAAD for financial support and A. Voitkiv, B. Najjari, and R. Moshammer for fruitful discussions and their hospitality at the Max-Planck Institut für Kernphysik (Heidelberg).

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N2 - A simple classical model based on linear response was developed to include binding-energy effects in the entrance channel for ion-atom ionization. The resulting theory was use for helium single ionization by singly and multiply charged ions. It was confirmed that distorted wave theories are sensitive to the choice of the initial state and that binding-energy effects for the active electron should be taken into account in initial-state distortions for intermediate impact energies. The results show that modified continuum distorted wave (CDW) approximation includes the active electron binding energy in the distorted wave description of the initial state.

AB - A simple classical model based on linear response was developed to include binding-energy effects in the entrance channel for ion-atom ionization. The resulting theory was use for helium single ionization by singly and multiply charged ions. It was confirmed that distorted wave theories are sensitive to the choice of the initial state and that binding-energy effects for the active electron should be taken into account in initial-state distortions for intermediate impact energies. The results show that modified continuum distorted wave (CDW) approximation includes the active electron binding energy in the distorted wave description of the initial state.

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DO - 10.1103/PhysRevA.70.062713

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Influence of the electron binding energy in the distortion of the initial state in ion-atom collisions

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