Abstract
A brief description is given of how low energy electron beam scattering experiments may be conducted in the energy range down to a few meV. Experimental data demonstrating virtual state scattering in CO2are shown. Expressions are given for the time delays (or lifetimes) of low energy electron molecule encounters and these expressions are used to give insight into the nature of virtual state scattering. These ideas are extended to include cold atom collisions and it is shown that there is a universal maximum collision lifetime, for an ultracold collision energy E, given by (2E).1
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© 2005 Kluwer Academic/Plenum Publishers, New York
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Field, D., Jones, N.C., Ziesel, JP. (2005). Time Delays and Cold Collisons. In: Whelan, C.T., Mason, N.J. (eds) Electron Scattering. Physics of Atoms and Molecules. Springer, Boston, MA. https://doi.org/10.1007/0-387-27567-3_5
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DOI: https://doi.org/10.1007/0-387-27567-3_5
Publisher Name: Springer, Boston, MA
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