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Calculational procedure for electron‐atom scattering at arbitrary energies
Author(s) -
Callaway Joseph,
Matese John J.
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560060611
Subject(s) - scattering , atom (system on chip) , electron scattering , electron , physics , matrix (chemical analysis) , basis (linear algebra) , coupling (piping) , r matrix , atomic physics , quantum mechanics , chemistry , mathematics , geometry , computer science , materials science , chromatography , metallurgy , embedded system
The close coupling method for electron‐atom scattering is generalized and extended with the aid of the Nesbet variational method to provide a general procedure for the calculation of any transition. These features are introduced: (a) An arbitrary set of basis states for the atom (pseudostates), containing components in the continuum, which becomes complete if extended indefinitely. (b) The pseudo channels introduced in (a) are allowed to be open. (c) The T matrix (rather than the R matrix) is calculated directly.