Theoretical total cross sections for e-SO₂ scattering over a wide energy range (0.1−2000 eV) revealing a 3.4-eV shape resonance

Vinodkumar, Minaxi; Limbachiya, Chetan; Barot, Avani and Mason, Nigel (2012). Theoretical total cross sections for e-SO₂ scattering over a wide energy range (0.1−2000 eV) revealing a 3.4-eV shape resonance. Physical Review A, 86 012706.

DOI: https://doi.org/10.1103/PhysRevA.86.012706

Abstract

We have used the ab initio R-matrix formalism at low impact energies (below the ionization threshold of the target) and the spherical complex optical potential methodology above the ionization threshold to generate total cross sections for e-SO₂ scattering over the energy range from 0.1 to 2000 eV. The eigenphase diagram and total cross section indicate a structure at 3.4 eV which is ascribed to a shape resonance, evidence for which appears in earlier experimental studies

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