Scalar two-loop diagrams are calculated analytically in massive cases needed for the computation of boson and fermion propagators in QED and QCD by the causal method of Epstein and Glaser. It is demonstrated that this method, which is the basis for the so-called dispersive methods, provides many adv
A discussion of dual diagrams in perturbation theory
โ Scribed by P.V. Landshoff
- Publisher
- Elsevier Science
- Year
- 1960
- Weight
- 301 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0029-5582
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๐ SIMILAR VOLUMES
A general algorithm which generates all the topologically distinct, linked, non-Hartree-Fock vacuum and Greenfunction Hugenholtz-type diagrams is presented. Both the particle-hole and particle-particleGreen-functions are considered. The one-particle Green function diagrams are not treated separately
Programming languages used: FORTRAN IV High speed store required: 46k bytes. No. of bits hi a byte: 8 Is the program overlaid? No No. of magnetic tapes required: None Other peripherals used? Card reader, printer No. of cards in combined program and test deck: 879