Interactions in Intersecting Brane Models

Details Interactions in Intersecting Brane Models Interactions in Intersecting Brane Models

2003-03-13

arxiv.org/abs/hep-th/0303124v4

Nucl.Phys. B663 (2003) 197-214

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 10 figures. References added and typos corrected. Version to be published. Minor corrections

Scientific paper

10.1016/S0550-3213(03)00370-5

We discuss tree level three and four point scattering amplitudes in type II string models with matter fields localized at the intersections of D-brane wrapping cycles. Using conformal field theory techniques we calculate the four fermion amplitudes. These give "contact" interactions that can lead to flavour changing effects. We show how in the field theory limit the amplitudes can be interpreted as the exchange of Kaluza-Klein excitations, string oscillator states and stretched heavy string modes.

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