High energy elastic scattering of electrons from the 21S and 23S states of helium
- 1 December 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (17) , 2810-2816
- https://doi.org/10.1088/0022-3700/8/17/013
Abstract
Differential and total elastic cross sections are given in the first Born approximation for electrons incident on the ground and metastable (21S and 23S) states of helium. Unrestricted Hartree-Fock wavefunctions have been employed and for the ground state the resultant differential cross section is compared with those obtained using unrestricted Hartree-Fock and many-parameter wavefunctions. For the metastable states the differential cross section is very strongly peaked in the forward direction and the total cross sections are an order of magnitude larger than that for the ground state.Keywords
This publication has 19 references indexed in Scilit:
- Second Born approximation to electron and positron impact excitations of the 11S to 21S transition in heliumJournal of Physics B: Atomic and Molecular Physics, 1975
- Elastic Scattering of Fast Electrons by HeliumPhysical Review A, 1973
- Elastic Electron-Atom Scattering at Intermediate EnergiesPhysical Review A, 1973
- Total Cross Sections for Inelastic Scattering of Charged Particles by Atoms and Molecules. VI. Metastable HeliumPhysical Review A, 1971
- Absolute Measurement of Differential Cross Sections for Electron Scattering in HeliumPhysical Review A, 1970
- Absolute Differential Cross Sections of Elastically Scattered Electrons. I. He, N2, and CO at 500 eVThe Journal of Chemical Physics, 1969
- Accurate first Born approximation cross sections for the excitation of helium by fast electronsJournal of Physics B: Atomic and Molecular Physics, 1969
- Born cross sections for the electron and proton excitation of helium calculated using unrestricted Hartree-Fock wave functionsJournal of Physics B: Atomic and Molecular Physics, 1968
- The importance of correlation in the evaluation of Born cross sectionsJournal of Physics B: Atomic and Molecular Physics, 1968
- Atomic Form Factor and Incoherent-Scattering Function of the Helium AtomPhysical Review B, 1968