https://doi.org/10.1140/epjd/e2005-00244-0
Vibrational inelastic electron-H2 scattering revisited: numerically converged coupled channels space frame calculations with model interactions
Department of Chemistry, University of Rome “La Sapienza” and INFM, Piazzale
A. Moro 5, 00185 Rome, Italy
Corresponding author: a fa.gianturco@caspur.it
Received:
14
March
2005
Revised:
31
May
2005
Published online:
30
August
2005
The collisional excitation of the lower vibrational levels of
H
) molecules by low-energy electron impact is
computed using an empirical model potential and by solving the
coupled-channels scattering equations within a space-fixed (SF)
frame of reference formulation. Numerically converged partial,
integral inelastic and elastic cross-sections are obtained from what
is an essentially exact treatment of the dynamics and the results
are compared with measurements and with earlier calculations on the
same system. The usefulness of the SF method for handling excitation
processes at near-threshold collision energies is discussed and
analyzed through the calculations of collisional superelastic
partial cross-sections down to 10-2 meV of collision energy.
PACS: 34.80.Bm – Elastic scattering of electrons by atoms and molecules / 34.80.-i – Electron scattering
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
