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25 April 2024

» arxiv » hep-th/0108088

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A General Expression for Symmetry Factors of Feynman Diagrams
C.D. Palmer ; M.E. Carrington ;
Date:	13 Aug 2001
Journal:	Can.J.Phys. 80 (2002) 847-854
Subject:	hep-th
Abstract:	The calculation of the symmetry factor corresponding to a given Feynman diagram is well known to be a tedious problem. We have derived a simple formula for these symmetry factors. Our formula works for any diagram in scalar theory ($phi^3$ and $phi^4$ interactions), spinor QED, scalar QED, or QCD.
Source:	arXiv, hep-th/0108088
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