Abstract

We calculated the inelastic electron impact excitation cross sections of He⁺ by electrons for a model helium atom to examine the onset of the signature of quantum chaotic scattering in this simple system. We find Ericson fluctuations (EF) in the calculated inelastic scattering cross sections only when the impact energies lie within about 0.21 eV below the double ionization threshold. We also discuss the stringent requirements and the proper methods for analyzing the inelastic scattering cross sections in order to observe EF experimentally.

Department(s)

Physics

Keywords and Phrases

Atomic Physics; Chaotic Systems; Electric Excitation; Helium; Impact Ionization; Inelastic Scattering; Inert Gases; Ionization; Nuclear Physics; Radioactivity, American Physical Society (APS); Double Ionization (DI); Electron Impact Excitation; Ericson Fluctuations; Helium Atoms; Impact Energies; Quantum Chaotic Scattering; Scattering Cross Section (SCS); Simple Systems, Scattering

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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