Eur. Phys. J. D 39, 385-389 (2006)
https://doi.org/10.1140/epjd/e2006-00107-2

Studies on vibrational excitation differential cross-sections of low-energy electron scattering from N₂ molecule

¹ Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, 610065, P.R. China
² College of Physics, Sichuan University, Chengdu, 610065, P.R. China

Corresponding author: ^a dai13545679420@126.com

Received: 19 January 2006
Revised: 26 March 2006
Published online: 18 May 2006

Abstract

The vibrational excitation differential cross-sections (DCS) of low-energy electron-N₂ scattering are studied using vibrational close-coupling (VCC) method and vibrational scattering potentials which include static, exchange and polarization contributions. By including the contributions of 18 partial waves, 20 vibrational states, and 16 molecular symmetries (up to Λ=7), the converged vibrational excitation (0↦2, 0↦3, 0↦4) DCS agree well with experimental results. Also obtained are converged vibrational (1↦0, 1↦1, 1↦2, 1↦3) DCS, with the impact energies being those of the main resonant peaks (1.92 eV, 1.90 eV, 1.62 eV, 1.63 eV).