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arXiv · 0711.0209

Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds

Mirjam Cvetic·Timo Weigand
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Abstract

We construct the first globally consistent semi-realistic Type I string vacua on an elliptically fibered manifold where the zero modes of the Euclidean D1-instanton sector allow for the generation of non-perturbative Majorana masses of an intermediate scale. In another class of global models, a D1-brane instanton can generate a Polonyi-type superpotential breaking supersymmetry at an exponentially suppressed scale.

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Mirjam Cvetic, Timo Weigand. 2008-08-14. Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds. https://doi.org/10.1103/physrevlett.100.251601

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