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Studies of electron-polyatomic-molecule collisions Applications to e-CH4The first application of the Schwinger multichannel formulation to low-energy electron collisions with a nonlinear polyatomic target is reported. Integral and differential cross sections are obtained for e-CH4 collisions from 3 to 20 eV at the static-plus-exchange interaction level. In these studies, the exchange potential is directly evaluated and not approximated by local models. An interesting feature of the small-angle differential cross section is ascribed to polarization effects and not reproduced at the static-plus-exchange level. These differential cross sections are found to be in reasonable agreement with existing measurements at 7.5 eV and higher energies.
Document ID
19860030266
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lima, M. A. P.
(California Inst. of Tech. Pasadena, CA, United States)
Gibson, T. L.
(California Inst. of Tech. Pasadena, CA, United States)
Mckoy, V.
(California Institute of Technology Pasadena, United States)
Huo, W. M.
(Notre Dame, University IN, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: Physical Review A - General Physics, 3rd Series
Volume: 32
ISSN: 0556-2791
Subject Category
Atomic And Molecular Physics
Accession Number
86A15004
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-13992
CONTRACT_GRANT: NCC2-147
Distribution Limits
Public
Copyright
Other

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