Application of the Schwinger multichannel formulation to electron-impact excitation of the B /sup 1/. sigma. /sub u//sup +/ state of H/sub 2/

Journal Article · Sun Mar 15 04:00:00 EST 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.35.2473· OSTI ID:6056474

Gibson, T L; Lima, M A.P.; McKoy, V; Huo, W M

In this paper we report cross sections for electron-impact excitation of the X /sup 1/..sigma../sub g//sup +/..-->..B /sup 1/..sigma../sub u//sup +/ transition in H/sub 2/ for collision energies of 15, 20, and 30 eV. For this dipole-allowed transition with its associated long-range potential, the contributions of the more strongly scattered low-angular-momentum partial waves to the cross section were obtained from a two-state Schwinger multichannel calculation, and a modified Born-closure scheme was used to include the contributions from the remaining weakly scattered partial waves. Agreement between the calculated differential cross sections and available experimental data is encouraging.

• Research Organization: Department of Physics, Texas Tech University, Lubbock, Texas 79409
• OSTI ID: 6056474
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 10-100
EXCITATION
HYDROGEN
MOLECULE COLLISIONS
NONMETALS
PARTIAL WAVES
SCATTERING
SMALL ANGLE SCATTERING