Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds
High Energy Physics - Theory
2008-11-26 v3 High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.0711.0209,
title = {Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds},
author = {Mirjam Cvetic and Timo Weigand},
journal= {arXiv preprint arXiv:0711.0209},
year = {2008}
}
Comments
4 pages, 4 tables, uses revtex; v2: Discussion of instanton curves improved, typos fixed, references added; v3: version published in PRL