Two-electron transitions in high energy ion-helium collisions Academic Article

abstract

• Recent calculations and experiments on two-electron transitions in helium are reviewed. For double ionization and excitation ionization there is a large difference (about a factor of two) between the cross sections produced by protons and antiprotons. This difference is due to interference between first and second Born amplitudes, and correlation is required for first Born to be nonzero. The double ionization to single ionization ratio and the proton/antiproton difference is much larger for probabilities at small impact parameter than for the cross sections. The situation is qualitatively different for double excitation, where experimental and theoretical evidence points to a very small interference term and hence little positive projectile/negative projectile difference. © 1991 Springer-Verlag.

authors

• Ford, Albert

published proceedings

• Zeitschrift fr Physik D Atoms,Molecules and Clusters
• Zeitschrift f�r Physik D Atoms, Molecules and Clusters

author list (cited authors)

• Ford, A. L., & Reading, J. F.

citation count

• 1

complete list of authors

• Ford, AL||Reading, JF

publication date

• March 1991

publisher

• Springer Nature  Publisher

published in

• Zeitschrift für Physik D Atoms, Molecules and Clusters  Journal

Digital Object Identifier (DOI)

• 10.1007/bf01426306

start page

• s241

end page

• s242

volume

• 21

issue

• Suppl 1

URL

• http://dx.doi.org/10.1007/bf01426306