Elastic scattering of low-energy electrons by CF₃Cl, CF₃Br and CF₃I

Abstract

We report integral, differential and momentum transfer cross sections for elastic scattering of low-energy electrons by CF3X (X = Cl, Br, I) molecules. We use the Schwinger multichannel method with pseudopotentials (Bettega et al1993 Phys. Rev. A 47 1111) at the static exchange approximation. Our calculations cover the energy range between 5 and 30 eV. We compare our results with available theoretical and experimental results for CF3Cl and CF3I, and in general find good agreement. In particular, our results show the shape resonances belonging to the A1 and E representations of the C3v group that have been reported by previous work.