
Accession Number : AD0632807
Title : ANGULAR INTEGRATION OF FEYNMAN DIAGRAMS IN THE FIELDTHEORETIC 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 fieldtheoretic perturbation theory for the manyelectron 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 jcoefficients. With the resulting formula, the angular and radial parts of the Feynman diagrams for the first and secondorder 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 jcoefficients, 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