Vibrational Excitation of Water by Low-Energy Electrons

Experimental and calculated differential and integral cross-sections for electron-impact excitation of the unresolved stretching modes (100+001) and the bending mode (010) of water will be presented. The experimental DCSs are taken over an extensive range of incident energies (1eV to 100eV) and scattering angles (10 to 130 degrees) and are normalized to the recently measured elastic DCSs.\footnote{Khakoo et al., Phys. Rev. A 78, 052710 (2008).} The calculations are carried out in the adiabatic approximation using the Schwinger multichannel method. The present results are compared to previous theoretical and experimental results in the literature.