Superelastic cross sections in e{sup {minus}}-H{sub 2} scattering
- Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas (UNICAMP), 13083-970 Campinas, Sao Paulo (Brazil)
We present superelastic cross sections of H{sub 2} by electron impact. Our results, obtained with the Schwinger multichannel method, include cross sections for the c{sup 3}{Pi}{sub u}{r_arrow} X{sup 1}{Sigma}{sub g}{sup (+)}, c{sup 3}{Pi}{sub u}{r_arrow} b{sup 3}{Sigma}{sub u}{sup (+)}, c{sup 3}{Pi}{sub u}{r_arrow} a{sup 3}{Sigma}{sub g}{sup (+)}, and elastic c{sup 3}{Pi}{sub u}{r_arrow} c{sup 3}{Pi}{sub u} transitions. The calculated cross sections are very large, indicating their importance in the modeling of discharge environments. We also investigate the dependence of these cross sections on the internuclear separation of the H atoms and on different approximations of the target wave function. To assess the role of the exchange potential in these processes, we also present the corresponding polarization fractions. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 530943
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 55; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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