Equivalence of semiclassical and Born total cross sections. Penning ionization of H(1/sup 2/S) by He(2/sup 1/S)

Journal Article · Wed Dec 14 23:00:00 EST 1977 · J. Chem. Phys.; (United States)

OSTI ID:5280658

Huo, W M

The equivalence of total cross sections calculated in the Born approximation and the semiclassical straight-line trajectory method is shown to hold for a potential of arbitrary symmetry if a set of conditions is satisfied. This is used to support a previous argument (W. M. Huo, J. Chem. Phys. 66, 3572 (1977)) on the applicability of the Born approximation to near resonant energy transfer at thermal energies. As an example, the Penning ionization of H(1/sup 2/S) by He(2/sup 1/S) is calculated in the Born approximation using electron impact data.

• Research Organization: Department of Chemistry, Mellon Institute of Science, Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213
• OSTI ID: 5280658
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:12; 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
ATOM-ATOM COLLISIONS
BORN APPROXIMATION
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HELIUM
HYDROGEN
IONIZATION
NONMETALS
PENNING EFFECT
RARE GASES
SEMICLASSICAL APPROXIMATION
TOTAL CROSS SECTIONS