Abstract
Published cross sections for double ionization of helium by protons and antiprotons are analyzed in terms of the traditional interference between 1st and 2nd amplitudes. Between 3 and 10 a.u., the velocity dependence implies a dominant 2nd order interaction. For slower collisions it is shown that the velocity dependences are consistent with 3rd and 4th order interactions becoming important with these interactions having negative coefficients.
Recommended Citation
A. C. Santos et al., "Possible Evidence of 3ʳᵈ and 4th Order Interactions Contributions to Double Ioni- Zation of Helium by Protons and Antiprotons," Journal of Physics: Conference Series, vol. 635, no. 2, article no. 022017, IOP Publishing, Sep 2015.
The definitive version is available at https://doi.org/10.1088/1742-6596/635/2/022017
Department(s)
Physics
Publication Status
Open Access
International Standard Serial Number (ISSN)
1742-6596; 1742-6588
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 IOP Publishing, All rights reserved.
Publication Date
07 Sep 2015
