Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes

Details Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes

2004-04-19

arxiv.org/abs/hep-th/0404134v2

Nucl.Phys.B696:205-250,2004

Physics

High Energy Physics

High Energy Physics - Theory

51 pages, harvmac

Scientific paper

10.1016/j.nuclphysb.2004.06.052

We calculate various tree-level (disk) scattering amplitudes involving gauge, matter and moduli fields in type IIB toroidal orbifold/orientifold backgrounds with D9,D5 respectively D7,D3-branes or via T-duality D6-branes in type IIA compactifications. In type IIB the D-branes may have non-vanishing fluxes on their world-volume. From these results we extract the moduli and flux dependence of the tree-level gauge couplings, the metrics for the moduli and matter fields. The non-vanishing fluxes correspond in the T-dual type IIA description to intersecting D6-branes. This allows us to determine the moduli dependence of the tree-level matter field metrics in the effective action of intersecting D6-brane models. In addition we derive the physical Yukawa couplings with their correct normalization.

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