On the effective action of stable non-BPS branes

Details On the effective action of stable non-BPS branes On the effective action of stable non-BPS branes

1999-12-10

arxiv.org/abs/hep-th/9912090v1

Phys.Lett. B476 (2000) 141-148

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, LaTex, no figures

Scientific paper

10.1016/S0370-2693(00)00134-9

We study the world-volume effective action of stable non-BPS branes present in Type II theories compactified on K3. In particular, by exploiting the conformal description of these objects available in the orbifold limit, we argue that their world-volume effective theory can be chiral. The resulting anomalies are cancelled through the usual inflow mechanism provided there are anomalous couplings, similar to those of BPS branes, to the twisted R-R fields. We also show that this result is in agreement with the conjectured interpretation of these non-BPS configurations as BPS branes wrapped on non-supersymmetric cycles of the K3.

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