Short-range effects in resonant electron-molecule scattering from van der Waals clusters
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A theoretical study is presented of the dynamics of resonant electron scattering from N2-Ar and N2-Ar2van der Waals clusters. Using the results of quantum electron-molecule scattering calculations we analyze the effects of adjacent Ar atoms on the width and position of the low-energy2gelectron-scattering resonance of N2. The results indicate that the presence of the Ar atoms leads to positive energy shifts and an increase in the width of the resonance. The magnitude of these changes depended on the orientation of N2relative to the Ar atoms and on the number of Ar atoms. Additionally, in some arrangements, the degenerate2gresonance was split into two distinct resonances. Implications for electron scattering from N2adsorbed on solid Ar surfaces are also discussed. 1997 American Institute of Physics.
