Modified effective-range theory for electron scattering from molecules
- 14 March 1981
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 14 (5) , 893-901
- https://doi.org/10.1088/0022-3700/14/5/023
Abstract
An expression for the total cross section of electron-molecule scattering is derived in the modified effective-range theory. An excellent fit with the low-energy data in H2 of a recent time-of-flight experiment is found. In addition, the results are shown to be consistent with the diffusion cross section deduced from electron swarm data, pointing to a value of 1.27 a0 for the scattering length and a value of 5.4 a03 for the isotropic polarisability of H2. Finally a prediction is made for the total cross section in N2 at low energies.Keywords
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