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Type: Artigo de periódico
Title: Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method
Author: da Costa, RF
Lima, MAP
Abstract: The Schwinger multichannel method is applied to study the low-energy electron-impact excitation of molecular nitrogen. The scattering amplitudes are obtained within the minimal orbital basis for single configuration interactions (MOBSCI) level of approximation, for impact energies from near threshold up to 30 eV. Through the use of the MOBSCI strategy we have performed a close-coupling calculation for up to nine states, including the ground state and all singlet and triplet states resulting from the pi(u)->pi(g) transitions. Integral and differential cross sections for the X (1)Sigma(+)(g)-> A (3)Sigma(+)(u), W (3)Delta(u), B-' (3)Sigma(-)(u), a(') (1)Sigma(-)(u), and w (1)Delta(u) electronic transitions are presented and compared with available experimental data and also with other theoretical results.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review A. American Physical Soc, v. 75, n. 2, 2007.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.75.022705
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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