F A Gianturco and T Stoecklin 2001 J. Phys. B: At. Mol. Opt. Phys. 34 1695 doi:10.1088/0953-4075/34/9/308
F A Gianturco1,3 and T Stoecklin2
Show affiliationsThe low-energy electron scattering from CO2 molecules in the gas phase is examined for the elastic channel and the ensuing cross sections, integral and differential, are computed in order to compare them with a new set of experiments which detail their small-angle behaviour.
Our calculations show that the forward rising of the angular distributions seen by the experiments can be explained, for the elastic channels, in terms of constructive interference between the higher angular momentum components of the scattered electron. The computed results also reproduce the resonance position at low energy and the marked rise of the corresponding integral and momentum transfer cross sections in that energy region. Finally, we preliminarily discuss the possible computational evidence for the appearance of an s-wave virtual state at very low collision energies.
Issue 9 (14 May 2001)
Received 23 January 2001
F A Gianturco and T Stoecklin 2001 J. Phys. B: At. Mol. Opt. Phys. 34 1695
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