Accession Number : AD0632807

Title :   ANGULAR INTEGRATION OF FEYNMAN DIAGRAMS IN THE FIELD-THEORETIC PERTURBATION THEORY OF ATOMS,

Corporate Author : AMERICAN METEOROLOGICAL SOCIETY BOSTON MASS

Personal Author(s) : Bolotin,A. B. ; Levinson,I. B. ; Tolmachev,V. V.

Report Date : MAR 1966

Pagination or Media Count : 16

Abstract : The field-theoretic perturbation theory for the many-electron problem in atomic problems is developed further. The radial and angular parts are separated in the contribution from the quadruple vertex. The angular part is expressed through j-coefficients. With the resulting formula, the angular and radial parts of the Feynman diagrams for the first- and second-order energy shifts are separated directly from the quadruple vertex. General rules are formulated for the composition of Feynman diagrams with separated radial and angular parts. The momentum diagrams for the angular parts of the Feynman diagrams, which are diagrams for the j-coefficients, are completely similar to the Feynman diagrams themselves. (Author)

Descriptors :   (*PERTURBATION THEORY, NUMERICAL INTEGRATION), (*FIELD THEORY, NUMERICAL INTEGRATION), ATOMS, MOLECULES, MOMENTUM, GRAPHICS, USSR

Subject Categories : Physical Chemistry
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE