paper

Anomalous couplings for D-branes and O-planes

arXiv:hep-th/9812071 · doi:10.1016/S0550-3213(99)00217-5

Abstract

We study anomalous Wess-Zumino couplings of D-branes and O-planes in a general background and derive them from a direct string computation by factorizing in the RR channel various one-loop amplitudes. In particular, we find that Op-planes present gravitational anomalous couplings involving the Hirzebruch polynomial L, similarly to the roof genus A encoding Dp-brane anomalous couplings. We determine, in each case, the precise dependence of these couplings on the curvature of the tangent and normal bundles.

24 pages, LaTex, 5 figures

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