D-brane Instantons in 4D Supersymmetric String Vacua

Details D-brane Instantons in 4D Supersymmetric String Vacua D-brane Instantons in 4D Supersymmetric String Vacua

2007-12-11

arxiv.org/abs/0712.1793v1

Fortsch.Phys.56:313-323,2008

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 3 figures. Contribution to the proceedings of the BW2007 Workshop "Challenges Beyond the Standard Model", September

Scientific paper

10.1002/prop.200710501

We review some aspects of D-instantons in intersecting D-brane models. In particular, we present applications of the recently proposed instanton calculus to computations of charged matter superpotential couplings and corrections to the gauge kinetic function in the low energy effective action of type IIA orientifolds. As an interesting byway, we also discuss how one-loop corrections to the gauge kinetic function can be deduced from gauge threshold corrections in the type IIA setting.

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