Abstract
We have measured and calculated doubly differential cross sections for ionization of atomic hydrogen using 75-keV proton impact for fixed projectile energy losses as a function of scattering angle. This collision system represents a pure three-body system and thus offers an accurate test of the theoretical description of the few-body dynamics without any complications presented by electron correlation in many-electron targets. Comparison between experiment and several theoretical models reveals that the projectile-target nucleus interaction is best described by the operator of a second-order term of the transition amplitude. Higher-order contributions in the projectile-electron interaction, on the other hand, are more appropriately accounted for in the final-state wave function. © 2010 the American Physical Society.
Recommended Citation
M. Schulz and A. C. Laforge and K. N. Egodapitiya and J. S. Alexander and A. Hasan and M. F. Ciappina and A. C. Roy and R. Dey and A. Samolov and A. L. Godunov, "Doubly Differential Spectra of Scattered Protons in Ionization of Atomic Hydrogen," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 81, no. 5, article no. 052705, American Physical Society, May 2010.
The definitive version is available at https://doi.org/10.1103/PhysRevA.81.052705
Department(s)
Physics
International Standard Serial Number (ISSN)
1094-1622; 1050-2947
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Amerian Physical Society, All rights reserved.
Publication Date
21 May 2010
