Dimensional renormalization: ladders to rainbows

Details Dimensional renormalization: ladders to rainbows Dimensional renormalization: ladders to rainbows

1996-05-16

arxiv.org/abs/hep-th/9605107v1

Phys.Rev.D54:5373-5376,1996

Physics

High Energy Physics

High Energy Physics - Theory

RevTeX, no figures

Scientific paper

10.1103/PhysRevD.54.5373

Renormalization factors are most easily extracted by going to the massless limit of the quantum field theory and retaining only a single momentum scale. We derive factors and renormalized Green functions to all orders in perturbation theory for rainbow graphs and vertex (or scattering diagrams) at zero momentum transfer, in the context of dimensional renormalization, and we prove that the correct anomalous dimensions for those processes emerge in the limit D -> 4.

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