Discrete momentum representation of the Lippmann-Schwinger equation and its application to electron-molecule scattering - art. no. 032701

Authors
Polasek, M Jurek, M Ingr, M Carsky, P Horacek, J
Citation
M. Polasek et al., Discrete momentum representation of the Lippmann-Schwinger equation and its application to electron-molecule scattering - art. no. 032701, PHYS REV A, 6103(3), 2000, pp. 2701
Citations number
33
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
6103
Issue
3
Year of publication
2000
Database
ISI
SICI code
1050-2947(200003)6103:3<2701:DMROTL>2.0.ZU;2-4
Abstract
We present a way of using numerical quadrature in momentum space for solvin g the three-dimensional Lippmann-Schwinger equation. The integration is per formed in spherical coordinates. Test calculations show that the quadrature is well suited for the electron-molecule scattering problems. Sample resul ts of elastic scattering of electrons are presented for the empirical Yukaw a potential and ab initio Hartree-Fock potential of the hydrogen and methan e molecules.