Nonrenormalization Theorem for Gauge Coupling in 2+1D
A. N. Kapustin, P. I. Pronin
Abstract
We prove that -function of the gauge coupling in 2+1D gauge theory coupled to any renormalizable system of spinor and scalar fields is zero. This result holds both when the gauge field action is the Chern-Simons action and when it is the topologically massive action.
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