Bulk fields with general brane kinetic terms

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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31 pages, v2 few typos corrected

Scientific paper

10.1088/1126-6708/2003/02/051

We analyse the effect of general brane kinetic terms for bulk scalars, fermions and gauge bosons in theories with extra dimensions, with and without supersymmetry. We find in particular a singular behaviour when these terms contain derivatives orthogonal to the brane. This is brought about by $\delta(0)$ divergences arising at second and higher order in perturbation theory. We argue that this behaviour can be smoothed down by classical renormalization.

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