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Article Dans Une Revue Journal of Physics B: Atomic and Molecular Physics Année : 2009

Electron collision with the silicon monoxide (SiO) molecule using the R-matrix method

Hemal N. Varambhia
  • Fonction : Auteur
Monika Gupta
  • Fonction : Auteur
Alexandre Faure
K. L. Baluja
  • Fonction : Auteur
Jonathan Tennyson

Résumé

SiO is a molecule that is well known astrophysically. Electron scattering calculations are presented at the static-exchange and close-coupling approximations, one including 24 target states and another including 48 states. Our study predicts the existence of several low-lying narrow 2Π, 2Δ and 2Σ‑ Feshbach resonances and confirms the existence of a 2Π bound state. Results from the 48-state close-coupling calculation have been employed to calculate rotational (de)excitation rates and rate-fitting coefficients, which are useful in astrophysical modelling. Ionization cross sections, rotationally summed and resolved differential and integral cross sections are also presented.

Dates et versions

hal-00479896 , version 1 (03-05-2010)

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Citer

Hemal N. Varambhia, Monika Gupta, Alexandre Faure, K. L. Baluja, Jonathan Tennyson. Electron collision with the silicon monoxide (SiO) molecule using the R-matrix method. Journal of Physics B: Atomic and Molecular Physics, 2009, 42, pp.095204. ⟨10.1088/0953-4075/42/9/095204⟩. ⟨hal-00479896⟩
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