QUASI-CLASSICAL GREEN-FUNCTION AND DELBRUCK SCATTERING IN A SCREENED COULOMB FIELD

Authors
LEE RN MILSTEIN AI
Citation
Rn. Lee et Ai. Milstein, QUASI-CLASSICAL GREEN-FUNCTION AND DELBRUCK SCATTERING IN A SCREENED COULOMB FIELD, Physics letters. A, 198(3), 1995, pp. 217-224
Citations number
18
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
198
Issue
3
Year of publication
1995
Pages
217 - 224
Database
ISI
SICI code
0375-9601(1995)198:3<217:QGADSI>2.0.ZU;2-4
Abstract
A simple integral representation is derived for the quasiclassical Gre en function of the Dirac equation in an arbitrary spherically symmetri c decreasing external field. The consideration is based on the use of the quasiclassical radial wave functions with the main contribution of large angular momenta taken into account. The Green function obtained is applied to the calculation of the Delbruck scattering amplitudes i n a screened Coulomb field.