On the effect of the helium ground state wave function on the electron impact triple differential ionization cross section in asymmetric geometry

Journal Article · Mon Dec 15 04:00:00 EST 1986 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.451387· OSTI ID:6983302

Baliyan, K S; Srivastava, M K

The sensitivity of the triple differential cross sections for the electron impact ionization of helium to the target ground state wave function is investigated at high energies in the asymmetric Ehrhardt geometry. The calculation is done in the modified Glauber approximation using (i) one-parameter Hartree wave function and (ii) three-parameter analytical fit of Byron and Joachain to the Hartree--Fock wave function for the helium ground state. The latter choice leads to somewhat better agreement with the recent absolute data of Jung et al. at 600 eV incident energy. The results are however not very sensitive to this choice.

• Research Organization: Department of Physics, University of Roorkee, Roorkee-247 667, India
• OSTI ID: 6983302
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 85:12; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 100-1000
FLUIDS
FUNCTIONS
GASES
HELIUM
IONIZATION
NONMETALS
RARE GASES
WAVE FUNCTIONS