Non-perturbative Yukawa Couplings from String Instantons

Details Non-perturbative Yukawa Couplings from String Instantons Non-perturbative Yukawa Couplings from String Instantons

2007-07-12

arxiv.org/abs/0707.1871v1

Phys.Rev.Lett.100:061602,2008

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 2 tables, 2 figures

Scientific paper

10.1103/PhysRevLett.100.061602

Non-perturbative D-brane instantons can generate perturbatively absent though phenomenologically relevant couplings for Type II orientifold compactifications with D-branes. We discuss the generation of the perturbatively vanishing SU(5) GUT Yukawa coupling of type 10 10 5_H. Moreover, for a simple globally consistent intersecting D6-brane model, we discuss the generation of mass terms for matter fields. This can serve as a mechanism for decoupling exotic matter.

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