Low-energy electron collisions with water: elastic and rotationally inelastic scattering

Faure, A.; Gorfinkiel, J.D. and Tennyson, Jonathan (2004). Low-energy electron collisions with water: elastic and rotationally inelastic scattering. Journal of Physics B: Atomic, Molecular and Optical Physics, 37(4) pp. 801–807.

DOI: https://doi.org/10.1088/0953-4075/37/4/007

Abstract

Differential, integral and momentum transfer cross sections for the vibrationally elastic and rotationally inelastic scattering of electrons from water at low collision energies (E < 7 eV) are reported. The R-matrix method is used to compute the body-fixed T-matrices while the scattering calculations are performed within the fixed-nuclei approximation corrected with the standard Born-closure formula. Our calculations are compared with the very recent experimental results of Cho et al (2003 Radiat. Phys. Chem. 68 115). The differential and momentum transfer cross sections are in good agreement with the experimental results. The relative contribution of the rotationally inelastic processes is investigated in some detail. In particular, the importance of the pure elastic process at very low energy is emphasized.

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