Anti-Proton And Proton Impact Excitation-Ionization Of Helium Including Resonant Decay

Authors

Jack C. Straton, Portland State UniversityFollow
James H. McGuire, Tulane UniversityFollow
A.L Godunov, Troitsk Institute for Innovation and Fusion Research

Published In

Nuclear Instruments and Methods in Physics Research B

Document Type

Citation

Publication Date

1998

Abstract

The cross section for projectile impact excitation±ionization of helium is calculated, including spatial correlation, time-ordering, and interference between autoionizing and continuum states. The computational load is greatly reduced by using con®guration-interaction (CI) helium wave functions and continuum pseudostates, yielding a scattering amplitude that is a sum of analytical terms for the ®rst-order and energy-conserving second- and third-order contributions, and a one-dimensional integral for the energy-nonconserving second-order contributions. Comparison is made with experiment.

Locate the Document

https://doi.org/10.1016/S0168-583X(98)00249-3

DOI

10.1016/S0168-583X(98)00249-3

Persistent Identifier

https://archives.pdx.edu/ds/psu/25892

Citation Details

Straton, J. C., McGuire, J. H., & Godunov, A. L. (1998). Anti-proton and proton impact excitation–ionization of helium including resonant decay. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 143(1-2), 225-232