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The FEM-R-Matrix Approach: Use of Mixed Finite Element and Gaussian Basis Sets for Electron Molecule CollisionsFor the calculation of electron molecule collision cross sections R-matrix methods automatically take advantage of the division of configuration space into an inner region (I) bounded by radius tau b, where the scattered electron is within the molecular charge cloud and the system is described by an correlated Configuration Interaction (CI) treatment in close analogy to bound state calculations, and an outer region (II) where the scattered electron moves in the long-range multipole potential of the target and efficient analytic methods can be used for solving the asymptotic Schroedinger equation plus boundary conditions.
Document ID
20020036216
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Thuemmel, Helmar T.
(NASA Ames Research Center Moffett Field, CA United States)
Huo, Winifred M.
(NASA Ames Research Center Moffett Field, CA United States)
Langhoff, Stephen R.
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Atomic And Molecular Physics
Meeting Information
Meeting: ICPEAC XIX
Location: Wistler
Country: Canada
Start Date: July 26, 1995
End Date: August 1, 1995
Funding Number(s)
PROJECT: RTOP 242-80-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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