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

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 (2)P, (2) and (2...

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Bibliographic Details
Published in:Journal of physics. B, Atomic and molecular physics Atomic and molecular physics, 2009-05, Vol.42 (9), p.095204
Main Authors: Varambhia, Hemal N, Gupta, Monika, Faure, Alexandre, Baluja, K L, Tennyson, Jonathan
Format: Article
Language:English
Subjects:
Atomic and molecular collision processes and interactions
Atomic and molecular physics
Electron scattering
Exact sciences and technology
Molecular excitation and ionization by electron impact
Physics
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Summary: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 (2)P, (2) and (2)S(-) Feshbach resonances and confirms the existence of a (2)P 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.
ISSN:0953-4075
0022-3700
1361-6455
DOI:10.1088/0953-4075/42/9/095204