Running couplings in extra dimensions

Details Running couplings in extra dimensions Running couplings in extra dimensions

2000-10-07

arxiv.org/abs/hep-ph/0010069v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages. 2 figures. Parallel session talk presented at ICHEP 2000, July 27 - August 2, 2000, Osaka, Japan

Scientific paper

The regularization scheme dependence of running couplings in extra compactified dimensions is discussed. We examine several regularization schemes explicitly in order to analyze the scheme dependence of the Kaluza-Klein threshold effects, which cause the power law running, in the case of the scalar theory in five dimensions with one dimension compactified. It is found that in 1-loop order, the net difference in the running of the coupling among the different schemes is reduced to be rather small after finite renormalization. An additional comment concerns the running couplings in the warped extra dimensions which are found to be regularization dependent above TeV scale.

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