Schwinger multichannel method: A study of a Feshbach resonance in e -H sub 2 collisions

Journal Article · Wed Feb 28 23:00:00 EST 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.2903· OSTI ID:7134805

da Silva, A J.R.; Lima, M A.P.; Brescansin, L M ^[1]; McKoy, V ^[2]

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1. Instituto de Fisica Gleb Wataghin, Unicamp-Caixa Postal 6165, 13081 Campinas, Sao Paulo, (Brazil)
2. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125 (USA)

We present results of the application of the Schwinger multichannel method to study the role of Feshbach resonances on the elastic and electronic excitation cross sections in {ital e}-H{sub 2} collisions. Using a {sup 2}{Sigma}{sub g}{sup +} resonance associated with the {ital a}{sup 3}{Sigma}{sub g}{sup +} and {ital E} {sup 1}{Sigma}{sub g}{sup +} states of H{sub 2} as an example, we quantitatively illustrate the dramatic influence of open channels on the decay of such Feshbach resonances in electron-molecule collisions.

• OSTI ID: 7134805
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Journal Issue: 5 Vol. 41:5; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROGEN
MOLECULE COLLISIONS
MULTILEVEL ANALYSIS
NONMETALS
RESONANCE
SCATTERING