(1) Centre de Physique Théorique de l'Ecole Polytechnique, Plateau de Palaiseau, F-91128 Palaiseau, Cedex, France;(2) Present address: Department of Mathematics, University of British Columbia, V6T 1Y4 Vancouver, B.C., Canada
Abstract:
LetG be a Euclidean Feynman graph containingL(G) lines. We prove that ifG has massive propagators and does not contain any divergent subgraphs its value is bounded byKL(G). We also prove the infrared analogue of this bound.