Title

Double Ionization of Helium by Impact of Particles with Positive and Negative Charge

Abstract

Double ionization of helium in collisions with 6 MeV protons (vP = 15.5 a.u.) has been explored in a kinematically complete experiment using a so-called "reaction microscope". For the first time fully differential cross sections for positively charged particle impact have been obtained and compared to previous (e,3e) results with 2 keV electrons (vP = 12 a.u.). Differences have been found in the angular distribution of the two emitted electrons, which originate from projectile charge effects that are not considered in the first Born approximation

Meeting Name

Twelfth International Symposium on Polarization and Correlation in Electronic and Atomic Collisions (2003: Jul. 30-Aug. 2, Konigstein, Germany)

Department(s)

Physics

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2003 American Institute of Physics (AIP), All rights reserved.

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