Atom-molecule scattering with the average wavefunction method |
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| Institution: | 1. Department of Neurology, University of Rochester, NY, USA;2. Centre de Recherche du CHU de Québec, Université Laval, Québec, Canada;3. Department of Biostatistics and Computational Biology, University of Rochester, NY, USA;4. The Edmond J. Safra Program in Parkinson''s Disease and the Morton and Gloria Shulman Movement Disorders Clinic, University of Toronto, Toronto, Ontario, Canada |
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| Abstract: | The average wavefunction method (AWM) is applied to atom-molecule scattering. In its simplest form the labor involved in solving the AWM equations is equivalent to that involved for elastic scattering in the same formulation. As an initial illustration, explicit expressions for the T-matrix are derived for the scattering of an atom and a rigid rotor. Results are presented for low-energy scattering and corrections to the Born approximation are clearly evident. In general, the AWM is particularly suited to polyatom scattering due to its reduction of the potential in terms of a separable atom-atom potential. |
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