skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method

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}{sub u}{yields}{pi}{sub g} transitions. Integral and differential cross sections for the X {sup 1}{sigma}{sub g}{sup +}{yields}A {sup 3}{sigma}{sub u}{sup +}, W {sup 3}{delta}{sub u}, B{sup '} {sup 3}{sigma}{sub u}{sup -}, a{sup '} {sup 1}{sigma}{sub u}{sup -}, and w {sup 1}{delta}{sub u} electronic transitions are presented and compared with available experimental data and also with other theoretical results.

Authors:
;  [1]
  1. Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, Caixa Postal 6165, 13083-970 Campinas, Sao Paulo (Brazil)
Publication Date:
OSTI Identifier:
20982119
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.022705; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; APPROXIMATIONS; CONFIGURATION INTERACTION; COUPLING; DIFFERENTIAL CROSS SECTIONS; ELECTRON-MOLECULE COLLISIONS; ELECTRONS; EV RANGE; EXCITATION; GROUND STATES; NITROGEN; SCATTERING AMPLITUDES; TRIPLETS; VARIATIONAL METHODS

Citation Formats

Da Costa, Romarly F., and Lima, Marco A. P. Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.022705.
Da Costa, Romarly F., & Lima, Marco A. P. Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method. United States. doi:10.1103/PHYSREVA.75.022705.
Da Costa, Romarly F., and Lima, Marco A. P. Thu . "Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method". United States. doi:10.1103/PHYSREVA.75.022705.
@article{osti_20982119,
title = {Electron-impact electronic excitation of molecular nitrogen using the Schwinger multichannel variational method},
author = {Da Costa, Romarly F. and Lima, Marco A. P.},
abstractNote = {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}{sub u}{yields}{pi}{sub g} transitions. Integral and differential cross sections for the X {sup 1}{sigma}{sub g}{sup +}{yields}A {sup 3}{sigma}{sub u}{sup +}, W {sup 3}{delta}{sub u}, B{sup '} {sup 3}{sigma}{sub u}{sup -}, a{sup '} {sup 1}{sigma}{sub u}{sup -}, and w {sup 1}{delta}{sub u} electronic transitions are presented and compared with available experimental data and also with other theoretical results.},
doi = {10.1103/PHYSREVA.75.022705},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}