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FEW CENTRE SCATTERING CALCULATIONS. I. PHYSICAL FORMULATIONS OF VARIATIONAL TREATMENTS OF ELECTRONIC EXCITATION OF FEW-CENTRE MOLECULES BY SLOW ELECTRON SCATTERING
UNIVERSITY COLL LONDON (ENGLAND)
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IT IS OBSERVED THAT AT PRESENT THERE ARE NO THEORETICAL METHODS OF CALCULATING CROSS SECTIONS FOR ELECTRONIC EXCITATION OF SMALL MOLECULES BY SLOW ELECTRONS UNLESS THE MOLECULE IS DIATOMIC OR APPROXIMATELY SPHERICAL. A number of general procedure suitable for use with the Hulthens or Kohn Variational Methods and for few-centre molecules are formulated, and a new expansion theor m is derived. It is concluded that the procedure referred to as the Static Centroidal is the most promising of those examined. Author
APPROVED FOR PUBLIC RELEASE