On Chern-Simons Couplings at order $O({\alpha }^{\prime 2})$

Abstract

Using the explicit string scattering calculation and the linear T-dual ward identity, we evaluate the string theory disc amplitude of one Ramond-Ramond field $C^{(p+1)}$ and two Neveu-Schwarz B-fields in the presence of a single $D_p$-brane in type $IIB$ string theory. From this amplitude we extract the $O({\alpha }^{\prime 2})$ (or equivalently four-derivative) part of the $D_p$-brane couplings involving these fields.

arXiv comment19 pages, 1 table. arXiv admin note: text overlap with arXiv:1102.5510 by other authors

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Cited by in corpus (2)

• Duality constraints on effective actions
• S-dual Amplitude and D3-Brane Couplings