A Remark on Smoothing Out Higher Codimension Branes

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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8 pages, revtex, a minor misprint corrected (to appear in Mod. Phys. Lett. A)

Scientific paper

10.1142/S0217732302006904

We discuss some issues arising in studying (linearized) gravity on non-BPS higher codimension branes in an infinite-volume bulk. In particular, such backgrounds are badly singular for codimension-3 and higher delta-function-like branes with non-zero tension. As we discuss in this note, non-trivial issues arise in smoothing out such singularities. Thus, adding higher curvature terms might be necessary in this context.

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