Department of Physics Papers

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Journal Article

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Nonperturbative 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 5H). 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.


Suggested Citation:
R. Blumenhagen, M. Cvetič, D. Lüst, R. Richter and T. Weigand. (2008). "Nonperturbative Yukawa Couplings from String Instantons." Physical Review Letters 100, 061602.

© 2008 The American Physical Society

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Date Posted: 25 January 2011

This document has been peer reviewed.