Power law in a gauge-invariant cut-off regularisation
T. Varin, J. Welzel, A. Deandrea, D. Davesne
Abstract
We study one-loop quantum corrections of a compactified Abelian 5d gauge field theory. We use a cut-off regularisation procedure which respects the symmetries of the model, i.e. gauge invariance, exhibits the expected power-like divergences and therefore allows the derivation of power-law behavior of the effective 4d gauge coupling in a coherent manner.
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