Abstract
Total cross sections for single and double ionization of helium by alpha particles of incident energy 50 to 1280 keV u-1 are presented. The continuum distorted-wave eikonal initial state (CDWEIS) approximation is used throughout. Corrected double ionization total cross sections are also presented. The semiclassical independent-even (IEV) model is adopted and an open-shell radially correlated two electron wavefunction is used for the initial bound state. The single ionization results fall below the experimental values; this is attributed to the neglect of ionization-excitation in the authors' theoretical calculations. The effect of electron capture to the continuum of the projectile (ECC) on double ionization cross sections for slower projectiles is briefly examined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
