Absolute doubly differential single-ionization cross sections in {ital p}+He collisions
- Department of Physics and the Laboratory for Atomic and Molecular Research, University of Missouri--Rolla, Rolla, Missouri 65401 (United States)
We have measured and calculated doubly differential single-ionization cross sections for 50{endash}150-keV {ital p}+He collisions as a function of the projectile energy loss and scattering angle. The measured cross sections were put on an absolute scale by normalizing the integrated cross sections to known total cross sections. Clear effects of the postcollision interaction (PCI) were observed in the scattered projectile spectra. Our singly differential cross sections as a function of projectile energy loss do not agree with corresponding cross sections obtained from electron spectroscopy. These discrepancies are attributed to the PCI. Our calculations including the PCI reproduce the shape of our data quite well; however, there are discrepancies in the absolute magnitude. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 385676
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 54; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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