Electron-impact excitation of the D3Sigma(+)u and c'4(1)Sigma(+)u Rydberg states of N2

Details Electron-impact excitation of the D3Sigma(+)u and c'4(1)Sigma(+)u Rydberg states of N2 Electron-impact excitation of the D3Sigma(+)u and c'4(1)Sigma(+)u Rydberg states of N2

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrva..29.1709f&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 29, April 1984, p. 1709-1728. USAF-supported research.

Physics

General Physics

39

Electron Impact, Electron States, Molecular Excitation, Nitrogen, Rydberg Series, Electron Scattering, Ground State, Light Emission, Molecular Collisions, Optical Polarization

Scientific paper

The results of an optical method study of the production of the D3Sigma(+)u(v = 0) and c'4(1)Sigma(+)u(v = 0) states of N2 by controlled electron collision with molecules in the lowest vibrational level of the singlet Chi(1)Sigma(+)g ground state are reported and discussed. Three characteristic features are found: a principal maximum occurring at 14.1 + or - 0.3 eV where the D(v = 0) - B optical-emission cross section reaches a value of 1.3 x 10 to the 19th/sq cm, a smaller maximum at 23 eV, and an E to the -3rd energy dependence for incident electron energies over 65 eV. It is also shown that the cascade contribution of the D3Sigma(+)u state to the population of the B3Pi(g) and the metastable A3Sigma(+)u states of N2 via D - B and D - B - A, respectively, is quite small with respect to the contribution from the N2 C3Pi(u) state via C - B and C - B - A.

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