Singlet-singlet and triplet-triplet excitations of the helium atom by proton impact
- 14 February 1986
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 19 (3) , 301-308
- https://doi.org/10.1088/0022-3700/19/3/013
Abstract
Differential and integral cross sections for singlet-singlet (11S to n1S, n=2, 3, 4; 21S to m1S, m=3, 4) and triplet-triplet (23S to 33S) excitations of the helium atom by proton impact are calculated in the framework of the distorted-wave approximation. A comparative study is made by taking the distorted-wave (Coulomb-wave) approximation in either the initial or final channel or both. The energy range studied is from 100-500 keV. The computed results are compared with the plane-wave results and other available theoretical results.Keywords
This publication has 19 references indexed in Scilit:
- Differential cross sections for excitation of the helium atom by proton impactJournal of Physics B: Atomic and Molecular Physics, 1980
- Electron impact excitation of the 21S state of helium at intermediate and high energiesJournal of Physics B: Atomic and Molecular Physics, 1975
- Modified Born model for excitation of atoms by electronsPhysical Review A, 1975
- Elastic and the 21S and 21P inelastic differential cross sections for proton-helium scatteringJournal of Physics B: Atomic and Molecular Physics, 1974
- Inelastic scattering of electrons and protons by atoms at intermediate energies. IIJournal of Physics B: Atomic and Molecular Physics, 1974
- The use of second order potentials in the theory of scattering of charged particles by atoms. V. Excitation of helium atoms by fast protons and charge exchangeJournal of Physics B: Atomic and Molecular Physics, 1973
- A high energy approximation. II. Hydrogen atom excitation by electronsJournal of Physics B: Atomic and Molecular Physics, 1971
- The 21S and 21P excitations of helium by proton and electron impactJournal of Physics B: Atomic and Molecular Physics, 1970
- Accurate first Born approximation cross sections for the excitation of helium by fast protonsJournal of Physics B: Atomic and Molecular Physics, 1968
- Correlation Effects in Atoms. I. HeliumPhysical Review B, 1966