✦ LIBER ✦

Program “color” for computing the group-theoretic weight of Feynman diagrams in non-Abelian gauge theories

✍ Scribed by A.P. Kryukov; A.Ya. Rodionov

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 440 KB
Volume: 48
Category: Article
ISSN: 0010-4655
DOI: 10.1016/0010-4655(88)90052-5

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✦ Synopsis

Nature of physical problem

Computations of Feynman diagrams in non-Abelian gauge field theories involves the group-theoretic weight computation. The present program implements the Cvitanovic algorithm [2] of computation of the group-theoretic weight for SU( n) and SO(n).

Restriction on the complexity of the problem

The available computer memory is the severest restriction.

Running time

Strongly depends on the concrete form of the diagram. The running time of test examples is 4 to 40 s on the computer EC-1040.