Differential cross sections for the ionization of H2 + by proton impact without using the two-effective center approximation

A. Igarashi, L. Gulyás, A. Ohsaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The ionization of H2 + through the impact of fast protons is treated within the fixed nuclei approximation by using the Born and CDW-EIS models, in which accurate electronic wavefunctions are applied to the H2 + ion. The differential cross sections are compared to those calculated by an alternative CDW-EIS treatment via use of the two-effective center (TEC) approximation. Generally, the calculations with and without the TEC approximation give similar results, however, discrepancies can be observed in the domains of differential cross sections with relatively small values.

Original languageEnglish
Article number035204
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume49
Issue number3
DOIs
Publication statusPublished - Jan 21 2016

Fingerprint

proton impact
ionization
cross sections
approximation
nuclei
protons
electronics
ions

Keywords

  • collision
  • H
  • ionization

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

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abstract = "The ionization of H2 + through the impact of fast protons is treated within the fixed nuclei approximation by using the Born and CDW-EIS models, in which accurate electronic wavefunctions are applied to the H2 + ion. The differential cross sections are compared to those calculated by an alternative CDW-EIS treatment via use of the two-effective center (TEC) approximation. Generally, the calculations with and without the TEC approximation give similar results, however, discrepancies can be observed in the domains of differential cross sections with relatively small values.",
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T1 - Differential cross sections for the ionization of H2 + by proton impact without using the two-effective center approximation

AU - Igarashi, A.

AU - Gulyás, L.

AU - Ohsaki, A.

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Y1 - 2016/1/21

N2 - The ionization of H2 + through the impact of fast protons is treated within the fixed nuclei approximation by using the Born and CDW-EIS models, in which accurate electronic wavefunctions are applied to the H2 + ion. The differential cross sections are compared to those calculated by an alternative CDW-EIS treatment via use of the two-effective center (TEC) approximation. Generally, the calculations with and without the TEC approximation give similar results, however, discrepancies can be observed in the domains of differential cross sections with relatively small values.

AB - The ionization of H2 + through the impact of fast protons is treated within the fixed nuclei approximation by using the Born and CDW-EIS models, in which accurate electronic wavefunctions are applied to the H2 + ion. The differential cross sections are compared to those calculated by an alternative CDW-EIS treatment via use of the two-effective center (TEC) approximation. Generally, the calculations with and without the TEC approximation give similar results, however, discrepancies can be observed in the domains of differential cross sections with relatively small values.

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KW - ionization

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