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Two-loop scalar diagrams from string theory

โœ Scribed by Paolo Di Vecchia; Lorenzo Magnea; Alberto Lerda; Raffaele Marotta; Rodolfo Russo


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
902 KB
Volume
388
Category
Article
ISSN
0370-2693

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๐Ÿ“œ SIMILAR VOLUMES


Two-Loop Diagrams in Causal Perturbation
โœ Andreas Aste ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 521 KB

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