Differential Cross Sections for Double Excitation of the Autoionizing States of Helium by 100-150 KeV Proton Impact
Abstract
Autoionizing (2s 2) 1S, (2p 2) 1D and (2s2p) 1P resonances in projectile energy loss spectra are studied theoretically for protons scattered on atomic helium. The differential resonance yield, as a function of the scattering angle, is the quantity of primary attention. The effects of the Coulomb interaction in the final state and the projectile-core interaction on the differential resonance yield are studied. Comparison with the experimental data of Schulz et al (1995) (Schulz M, Htwe W T, Gauss A D, Peacher J L and Vajnai T 1995 Phys. Rev. A 51 2140-50) is presented. Comparison is also made with calculations for differential cross sections of double excitation.
Recommended Citation
A. L. Godunov et al., "Differential Cross Sections for Double Excitation of the Autoionizing States of Helium by 100-150 KeV Proton Impact," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 35, no. 11, pp. 2477 - 2492, Institute of Physics - IOP Publishing, May 2002.
The definitive version is available at https://doi.org/10.1088/0953-4075/35/11/307
Department(s)
Physics
Keywords and Phrases
Ionization; Protons; Resonance; Scattering; Autoionizing resonances; Helium
International Standard Serial Number (ISSN)
0953-4075
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2002 Institute of Physics - IOP Publishing, All rights reserved.
Publication Date
01 May 2002
