Anomalous D-brane and orientifold couplings from the boundary state

Ben Craps; Frederik Roose

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Anomalous D-brane and orientifold couplings from the boundary state

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arxiv hep-th/9808074 v3 pith:V7NEZ2BP submitted 1998-08-12 hep-th

Ben Craps , Frederik Roose This is my paper

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keywords d-braneorientifoldanomalouscouplingsactionsamplitudesboundaryclass

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We compute scattering amplitudes involving both R-R and NS-NS fields in the presence of a D-brane or orientifold plane. These provide direct evidence for the anomalous couplings in the D-brane and orientifold actions. The D9-brane and O9-plane are found to couple to the first Pontrjagin class with the expected relative strength.

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