Published November 15, 1989
| Published
Journal Article
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Cross sections for rotational excitation of CH_4 by 3–20-eV electrons
Chicago
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Abstract
We report calculated differential, integral, and momentum-transfer cross sections for rotational excitation of CH_4 by electron impact in the 3–20-eV energy range. These cross sections were derived from fixed-nuclei scattering amplitudes obtained using the Schwinger multichannel method. Our results represent the first rotational excitation cross sections obtained for a polyatomic molecule using entirely ab initio procedures. The cross sections agree well with those of earlier model-potential calculations. A comparison of these calculated cross sections with available experimental data is in general encouraging, but some discrepancies remain.
Additional Information
©1989 The American Physical Society. Received 19 April 1989. L.M.B. acknowledges support from the Instituto de Estudos Avançados, Centro Técnico Aeroespacial, São José dos Campos, São Paulo, Brasil. M.A.P.L. acknowledges support from the Universidade Estadual de Campinas, Campinas, São Paulo, Brasil. L.M.B. and M.A.P.L. also acknowledge financial support from Brazilian agency Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). The work at the California Institute of Technology is supported by the National Science Foundation under Grant No. PHY-8604242 and the Innovative Science and Technology Program of the Strategic Defense Initiative Organization under U.S. Army Research Office Contract No. DAAL 03-86-K-0140.Attached Files
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Additional details
- Alternative title
- Cross sections for rotational excitation of CH4 by 3–20-eV electrons
- Eprint ID
- 6536
- Resolver ID
- CaltechAUTHORS:BREpra89
- Instituto de Estudos Avançados, Centro Técnico Aeroespacial
- Universidade Estadual de Campinas
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- NSF
- PHY-8604242
- Strategic Defense Initiative Organization (SDIO)
- Army Research Office (ARO)
- DAAL 03-86-K-0140
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2006-12-12Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field